405664520

素因数分解:

$2^3\times 5^1\times {\mathrm{47}}^1\times {\mathrm{151}}^1\times {\mathrm{1429}}^1$

素因数の和:1638

約数の個数: 64

約数和(自身を含む): 938995200

約数和(自身を除く): 533330680

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 47, 94, 151, 188, 235, 302, 376, 470, 604, 755, 940, 1208, 1429, 1510, 1880, 2858, 3020, 5716, 6040, 7097, 7145, 11432, 14194, 14290, 28388, 28580, 35485, 56776, 57160, 67163, 70970, 134326, 141940, 215779, 268652, 283880, 335815, 431558, 537304, 671630, 863116, 1078895, 1343260, 1726232, 2157790, 2686520, 4315580, 8631160, 10141613, 20283226, 40566452, 50708065, 81132904, 101416130, 202832260, 405664520]

約数ペア:

[(1, 405664520), (2, 202832260), (4, 101416130), (5, 81132904), (8, 50708065), (10, 40566452), (20, 20283226), (40, 10141613), (47, 8631160), (94, 4315580), (151, 2686520), (188, 2157790), (235, 1726232), (302, 1343260), (376, 1078895), (470, 863116), (604, 671630), (755, 537304), (940, 431558), (1208, 335815), (1429, 283880), (1510, 268652), (1880, 215779), (2858, 141940), (3020, 134326), (5716, 70970), (6040, 67163), (7097, 57160), (7145, 56776), (11432, 35485), (14194, 28580), (14290, 28388)]