31381618720

素因数分解:

$2^5\times 5^1\times {\mathrm{79}}^1\times {\mathrm{113}}^1\times {\mathrm{127}}^1\times {\mathrm{173}}^1$

素因数の和:507

約数の個数: 192

約数和(自身を含む): 76779601920

約数和(自身を除く): 45397983200

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 79, 80, 113, 127, 158, 160, 173, 226, 254, 316, 346, 395, 452, 508, 565, 632, 635, 692, 790, 865, 904, 1016, 1130, 1264, 1270, 1384, 1580, 1730, 1808, 2032, 2260, 2528, 2540, 2768, 3160, 3460, 3616, 4064, 4520, 5080, 5536, 6320, 6920, 8927, 9040, 10033, 10160, 12640, 13667, 13840, 14351, 17854, 18080, 19549, 20066, 20320, 21971, 27334, 27680, 28702, 35708, 39098, 40132, 43942, 44635, 50165, 54668, 57404, 68335, 71416, 71755, 78196, 80264, 87884, 89270, 97745, 100330, 109336, 109855, 114808, 136670, 142832, 143510, 156392, 160528, 175768, 178540, 195490, 200660, 218672, 219710, 229616, 273340, 285664, 287020, 312784, 321056, 351536, 357080, 390980, 401320, 437344, 439420, 459232, 546680, 574040, 625568, 703072, 714160, 781960, 802640, 878840, 1093360, 1133729, 1148080, 1428320, 1544371, 1563920, 1605280, 1735709, 1757680, 2186720, 2267458, 2296160, 2482723, 3088742, 3127840, 3471418, 3515360, 4534916, 4965446, 5668645, 6177484, 6942836, 7721855, 8678545, 9069832, 9930892, 11337290, 12354968, 12413615, 13885672, 15443710, 17357090, 18139664, 19861784, 22674580, 24709936, 24827230, 27771344, 30887420, 34714180, 36279328, 39723568, 45349160, 49419872, 49654460, 55542688, 61774840, 69428360, 79447136, 90698320, 99308920, 123549680, 138856720, 181396640, 196135117, 198617840, 247099360, 277713440, 392270234, 397235680, 784540468, 980675585, 1569080936, 1961351170, 3138161872, 3922702340, 6276323744, 7845404680, 15690809360, 31381618720]

約数ペア:

[(1, 31381618720), (2, 15690809360), (4, 7845404680), (5, 6276323744), (8, 3922702340), (10, 3138161872), (16, 1961351170), (20, 1569080936), (32, 980675585), (40, 784540468), (79, 397235680), (80, 392270234), (113, 277713440), (127, 247099360), (158, 198617840), (160, 196135117), (173, 181396640), (226, 138856720), (254, 123549680), (316, 99308920), (346, 90698320), (395, 79447136), (452, 69428360), (508, 61774840), (565, 55542688), (632, 49654460), (635, 49419872), (692, 45349160), (790, 39723568), (865, 36279328), (904, 34714180), (1016, 30887420), (1130, 27771344), (1264, 24827230), (1270, 24709936), (1384, 22674580), (1580, 19861784), (1730, 18139664), (1808, 17357090), (2032, 15443710), (2260, 13885672), (2528, 12413615), (2540, 12354968), (2768, 11337290), (3160, 9930892), (3460, 9069832), (3616, 8678545), (4064, 7721855), (4520, 6942836), (5080, 6177484), (5536, 5668645), (6320, 4965446), (6920, 4534916), (8927, 3515360), (9040, 3471418), (10033, 3127840), (10160, 3088742), (12640, 2482723), (13667, 2296160), (13840, 2267458), (14351, 2186720), (17854, 1757680), (18080, 1735709), (19549, 1605280), (20066, 1563920), (20320, 1544371), (21971, 1428320), (27334, 1148080), (27680, 1133729), (28702, 1093360), (35708, 878840), (39098, 802640), (40132, 781960), (43942, 714160), (44635, 703072), (50165, 625568), (54668, 574040), (57404, 546680), (68335, 459232), (71416, 439420), (71755, 437344), (78196, 401320), (80264, 390980), (87884, 357080), (89270, 351536), (97745, 321056), (100330, 312784), (109336, 287020), (109855, 285664), (114808, 273340), (136670, 229616), (142832, 219710), (143510, 218672), (156392, 200660), (160528, 195490), (175768, 178540)]