25939940

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{89}}^1$

素因数の和:189

約数の個数: 96

約数和(自身を含む): 63504000

約数和(自身を除く): 37564060

約数列:

[1, 2, 4, 5, 10, 13, 19, 20, 26, 38, 52, 59, 65, 76, 89, 95, 118, 130, 178, 190, 236, 247, 260, 295, 356, 380, 445, 494, 590, 767, 890, 988, 1121, 1157, 1180, 1235, 1534, 1691, 1780, 2242, 2314, 2470, 3068, 3382, 3835, 4484, 4628, 4940, 5251, 5605, 5785, 6764, 7670, 8455, 10502, 11210, 11570, 14573, 15340, 16910, 21004, 21983, 22420, 23140, 26255, 29146, 33820, 43966, 52510, 58292, 68263, 72865, 87932, 99769, 105020, 109915, 136526, 145730, 199538, 219830, 273052, 291460, 341315, 399076, 439660, 498845, 682630, 997690, 1296997, 1365260, 1995380, 2593994, 5187988, 6484985, 12969970, 25939940]

約数ペア:

[(1, 25939940), (2, 12969970), (4, 6484985), (5, 5187988), (10, 2593994), (13, 1995380), (19, 1365260), (20, 1296997), (26, 997690), (38, 682630), (52, 498845), (59, 439660), (65, 399076), (76, 341315), (89, 291460), (95, 273052), (118, 219830), (130, 199538), (178, 145730), (190, 136526), (236, 109915), (247, 105020), (260, 99769), (295, 87932), (356, 72865), (380, 68263), (445, 58292), (494, 52510), (590, 43966), (767, 33820), (890, 29146), (988, 26255), (1121, 23140), (1157, 22420), (1180, 21983), (1235, 21004), (1534, 16910), (1691, 15340), (1780, 14573), (2242, 11570), (2314, 11210), (2470, 10502), (3068, 8455), (3382, 7670), (3835, 6764), (4484, 5785), (4628, 5605), (4940, 5251)]