21582200

素因数分解:

$2^3\times 5^2\times {\mathrm{31}}^1\times {\mathrm{59}}^2$

素因数の和:165

約数の個数: 72

約数和(自身を含む): 52690080

約数和(自身を除く): 31107880

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 31, 40, 50, 59, 62, 100, 118, 124, 155, 200, 236, 248, 295, 310, 472, 590, 620, 775, 1180, 1240, 1475, 1550, 1829, 2360, 2950, 3100, 3481, 3658, 5900, 6200, 6962, 7316, 9145, 11800, 13924, 14632, 17405, 18290, 27848, 34810, 36580, 45725, 69620, 73160, 87025, 91450, 107911, 139240, 174050, 182900, 215822, 348100, 365800, 431644, 539555, 696200, 863288, 1079110, 2158220, 2697775, 4316440, 5395550, 10791100, 21582200]

約数ペア:

[(1, 21582200), (2, 10791100), (4, 5395550), (5, 4316440), (8, 2697775), (10, 2158220), (20, 1079110), (25, 863288), (31, 696200), (40, 539555), (50, 431644), (59, 365800), (62, 348100), (100, 215822), (118, 182900), (124, 174050), (155, 139240), (200, 107911), (236, 91450), (248, 87025), (295, 73160), (310, 69620), (472, 45725), (590, 36580), (620, 34810), (775, 27848), (1180, 18290), (1240, 17405), (1475, 14632), (1550, 13924), (1829, 11800), (2360, 9145), (2950, 7316), (3100, 6962), (3481, 6200), (3658, 5900)]