20191445680

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{79}}^1\times {\mathrm{113}}^1\times {\mathrm{577}}^1$

素因数の和:796

約数の個数: 240

約数和(自身を含む): 55886958720

約数和(自身を除く): 35695513040

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 49, 56, 70, 79, 80, 98, 112, 113, 140, 158, 196, 226, 245, 280, 316, 392, 395, 452, 490, 553, 560, 565, 577, 632, 784, 790, 791, 904, 980, 1106, 1130, 1154, 1264, 1580, 1582, 1808, 1960, 2212, 2260, 2308, 2765, 2885, 3160, 3164, 3871, 3920, 3955, 4039, 4424, 4520, 4616, 5530, 5537, 5770, 6320, 6328, 7742, 7910, 8078, 8848, 8927, 9040, 9232, 11060, 11074, 11540, 12656, 15484, 15820, 16156, 17854, 19355, 20195, 22120, 22148, 23080, 27685, 28273, 30968, 31640, 32312, 35708, 38710, 40390, 44240, 44296, 44635, 45583, 46160, 55370, 56546, 61936, 62489, 63280, 64624, 65201, 71416, 77420, 80780, 88592, 89270, 91166, 110740, 113092, 124978, 130402, 141365, 142832, 154840, 161560, 178540, 182332, 221480, 226184, 227915, 249956, 260804, 282730, 309680, 312445, 319081, 323120, 326005, 357080, 364664, 437423, 442960, 452368, 455830, 456407, 499912, 521608, 565460, 624890, 638162, 652010, 714160, 729328, 874846, 911660, 912814, 999824, 1043216, 1130920, 1249780, 1276324, 1304020, 1595405, 1749692, 1823320, 1825628, 2187115, 2233567, 2261840, 2282035, 2499560, 2552648, 2608040, 3190810, 3194849, 3499384, 3646640, 3651256, 4374230, 4467134, 4564070, 4999120, 5105296, 5150879, 5216080, 6381620, 6389698, 6998768, 7302512, 8748460, 8934268, 9128140, 10301758, 11167835, 12763240, 12779396, 15974245, 17496920, 17868536, 18256280, 20603516, 22335670, 25526480, 25558792, 25754395, 31948490, 34993840, 35737072, 36056153, 36512560, 41207032, 44671340, 51117584, 51508790, 63896980, 72112306, 82414064, 89342680, 103017580, 127793960, 144224612, 178685360, 180280765, 206035160, 252393071, 255587920, 288449224, 360561530, 412070320, 504786142, 576898448, 721123060, 1009572284, 1261965355, 1442246120, 2019144568, 2523930710, 2884492240, 4038289136, 5047861420, 10095722840, 20191445680]

約数ペア:

[(1, 20191445680), (2, 10095722840), (4, 5047861420), (5, 4038289136), (7, 2884492240), (8, 2523930710), (10, 2019144568), (14, 1442246120), (16, 1261965355), (20, 1009572284), (28, 721123060), (35, 576898448), (40, 504786142), (49, 412070320), (56, 360561530), (70, 288449224), (79, 255587920), (80, 252393071), (98, 206035160), (112, 180280765), (113, 178685360), (140, 144224612), (158, 127793960), (196, 103017580), (226, 89342680), (245, 82414064), (280, 72112306), (316, 63896980), (392, 51508790), (395, 51117584), (452, 44671340), (490, 41207032), (553, 36512560), (560, 36056153), (565, 35737072), (577, 34993840), (632, 31948490), (784, 25754395), (790, 25558792), (791, 25526480), (904, 22335670), (980, 20603516), (1106, 18256280), (1130, 17868536), (1154, 17496920), (1264, 15974245), (1580, 12779396), (1582, 12763240), (1808, 11167835), (1960, 10301758), (2212, 9128140), (2260, 8934268), (2308, 8748460), (2765, 7302512), (2885, 6998768), (3160, 6389698), (3164, 6381620), (3871, 5216080), (3920, 5150879), (3955, 5105296), (4039, 4999120), (4424, 4564070), (4520, 4467134), (4616, 4374230), (5530, 3651256), (5537, 3646640), (5770, 3499384), (6320, 3194849), (6328, 3190810), (7742, 2608040), (7910, 2552648), (8078, 2499560), (8848, 2282035), (8927, 2261840), (9040, 2233567), (9232, 2187115), (11060, 1825628), (11074, 1823320), (11540, 1749692), (12656, 1595405), (15484, 1304020), (15820, 1276324), (16156, 1249780), (17854, 1130920), (19355, 1043216), (20195, 999824), (22120, 912814), (22148, 911660), (23080, 874846), (27685, 729328), (28273, 714160), (30968, 652010), (31640, 638162), (32312, 624890), (35708, 565460), (38710, 521608), (40390, 499912), (44240, 456407), (44296, 455830), (44635, 452368), (45583, 442960), (46160, 437423), (55370, 364664), (56546, 357080), (61936, 326005), (62489, 323120), (63280, 319081), (64624, 312445), (65201, 309680), (71416, 282730), (77420, 260804), (80780, 249956), (88592, 227915), (89270, 226184), (91166, 221480), (110740, 182332), (113092, 178540), (124978, 161560), (130402, 154840), (141365, 142832)]