20213048420

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{347}}^1\times {\mathrm{1999}}^1$

素因数の和:2433

約数の個数: 96

約数和(自身を含む): 44900352000

約数和(自身を除く): 24687303580

約数列:

[1, 2, 4, 5, 10, 20, 31, 47, 62, 94, 124, 155, 188, 235, 310, 347, 470, 620, 694, 940, 1388, 1457, 1735, 1999, 2914, 3470, 3998, 5828, 6940, 7285, 7996, 9995, 10757, 14570, 16309, 19990, 21514, 29140, 32618, 39980, 43028, 53785, 61969, 65236, 81545, 93953, 107570, 123938, 163090, 187906, 215140, 247876, 309845, 326180, 375812, 469765, 505579, 619690, 693653, 939530, 1011158, 1239380, 1387306, 1879060, 2022316, 2527895, 2774612, 2912543, 3468265, 5055790, 5825086, 6936530, 10111580, 11650172, 13873060, 14562715, 21503243, 29125430, 32601691, 43006486, 58250860, 65203382, 86012972, 107516215, 130406764, 163008455, 215032430, 326016910, 430064860, 652033820, 1010652421, 2021304842, 4042609684, 5053262105, 10106524210, 20213048420]

約数ペア:

[(1, 20213048420), (2, 10106524210), (4, 5053262105), (5, 4042609684), (10, 2021304842), (20, 1010652421), (31, 652033820), (47, 430064860), (62, 326016910), (94, 215032430), (124, 163008455), (155, 130406764), (188, 107516215), (235, 86012972), (310, 65203382), (347, 58250860), (470, 43006486), (620, 32601691), (694, 29125430), (940, 21503243), (1388, 14562715), (1457, 13873060), (1735, 11650172), (1999, 10111580), (2914, 6936530), (3470, 5825086), (3998, 5055790), (5828, 3468265), (6940, 2912543), (7285, 2774612), (7996, 2527895), (9995, 2022316), (10757, 1879060), (14570, 1387306), (16309, 1239380), (19990, 1011158), (21514, 939530), (29140, 693653), (32618, 619690), (39980, 505579), (43028, 469765), (53785, 375812), (61969, 326180), (65236, 309845), (81545, 247876), (93953, 215140), (107570, 187906), (123938, 163090)]