42638680

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{197}}^1\times {\mathrm{773}}^1$

素因数の和:988

約数の個数: 64

約数和(自身を含む): 110341440

約数和(自身を除く): 67702760

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 197, 280, 394, 773, 788, 985, 1379, 1546, 1576, 1970, 2758, 3092, 3865, 3940, 5411, 5516, 6184, 6895, 7730, 7880, 10822, 11032, 13790, 15460, 21644, 27055, 27580, 30920, 43288, 54110, 55160, 108220, 152281, 216440, 304562, 609124, 761405, 1065967, 1218248, 1522810, 2131934, 3045620, 4263868, 5329835, 6091240, 8527736, 10659670, 21319340, 42638680]

約数ペア:

[(1, 42638680), (2, 21319340), (4, 10659670), (5, 8527736), (7, 6091240), (8, 5329835), (10, 4263868), (14, 3045620), (20, 2131934), (28, 1522810), (35, 1218248), (40, 1065967), (56, 761405), (70, 609124), (140, 304562), (197, 216440), (280, 152281), (394, 108220), (773, 55160), (788, 54110), (985, 43288), (1379, 30920), (1546, 27580), (1576, 27055), (1970, 21644), (2758, 15460), (3092, 13790), (3865, 11032), (3940, 10822), (5411, 7880), (5516, 7730), (6184, 6895)]