18930494720

素因数分解:

$2^8\times 5^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{16451}}^1$

素因数の和:16532

約数の個数: 144

約数和(自身を含む): 48424158720

約数和(自身を除く): 29493664000

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 29, 31, 32, 40, 58, 62, 64, 80, 116, 124, 128, 145, 155, 160, 232, 248, 256, 290, 310, 320, 464, 496, 580, 620, 640, 899, 928, 992, 1160, 1240, 1280, 1798, 1856, 1984, 2320, 2480, 3596, 3712, 3968, 4495, 4640, 4960, 7192, 7424, 7936, 8990, 9280, 9920, 14384, 16451, 17980, 18560, 19840, 28768, 32902, 35960, 37120, 39680, 57536, 65804, 71920, 82255, 115072, 131608, 143840, 164510, 230144, 263216, 287680, 329020, 477079, 509981, 526432, 575360, 658040, 954158, 1019962, 1052864, 1150720, 1316080, 1908316, 2039924, 2105728, 2385395, 2549905, 2632160, 3816632, 4079848, 4211456, 4770790, 5099810, 5264320, 7633264, 8159696, 9541580, 10199620, 10528640, 14789449, 15266528, 16319392, 19083160, 20399240, 21057280, 29578898, 30533056, 32638784, 38166320, 40798480, 59157796, 61066112, 65277568, 73947245, 76332640, 81596960, 118315592, 122132224, 130555136, 147894490, 152665280, 163193920, 236631184, 295788980, 305330560, 326387840, 473262368, 591577960, 610661120, 652775680, 946524736, 1183155920, 1893049472, 2366311840, 3786098944, 4732623680, 9465247360, 18930494720]

約数ペア:

[(1, 18930494720), (2, 9465247360), (4, 4732623680), (5, 3786098944), (8, 2366311840), (10, 1893049472), (16, 1183155920), (20, 946524736), (29, 652775680), (31, 610661120), (32, 591577960), (40, 473262368), (58, 326387840), (62, 305330560), (64, 295788980), (80, 236631184), (116, 163193920), (124, 152665280), (128, 147894490), (145, 130555136), (155, 122132224), (160, 118315592), (232, 81596960), (248, 76332640), (256, 73947245), (290, 65277568), (310, 61066112), (320, 59157796), (464, 40798480), (496, 38166320), (580, 32638784), (620, 30533056), (640, 29578898), (899, 21057280), (928, 20399240), (992, 19083160), (1160, 16319392), (1240, 15266528), (1280, 14789449), (1798, 10528640), (1856, 10199620), (1984, 9541580), (2320, 8159696), (2480, 7633264), (3596, 5264320), (3712, 5099810), (3968, 4770790), (4495, 4211456), (4640, 4079848), (4960, 3816632), (7192, 2632160), (7424, 2549905), (7936, 2385395), (8990, 2105728), (9280, 2039924), (9920, 1908316), (14384, 1316080), (16451, 1150720), (17980, 1052864), (18560, 1019962), (19840, 954158), (28768, 658040), (32902, 575360), (35960, 526432), (37120, 509981), (39680, 477079), (57536, 329020), (65804, 287680), (71920, 263216), (82255, 230144), (115072, 164510), (131608, 143840)]