51879880

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{89}}^1$

素因数の和:191

約数の個数: 128

約数和(自身を含む): 136080000

約数和(自身を除く): 84200120

約数列:

[1, 2, 4, 5, 8, 10, 13, 19, 20, 26, 38, 40, 52, 59, 65, 76, 89, 95, 104, 118, 130, 152, 178, 190, 236, 247, 260, 295, 356, 380, 445, 472, 494, 520, 590, 712, 760, 767, 890, 988, 1121, 1157, 1180, 1235, 1534, 1691, 1780, 1976, 2242, 2314, 2360, 2470, 3068, 3382, 3560, 3835, 4484, 4628, 4940, 5251, 5605, 5785, 6136, 6764, 7670, 8455, 8968, 9256, 9880, 10502, 11210, 11570, 13528, 14573, 15340, 16910, 21004, 21983, 22420, 23140, 26255, 29146, 30680, 33820, 42008, 43966, 44840, 46280, 52510, 58292, 67640, 68263, 72865, 87932, 99769, 105020, 109915, 116584, 136526, 145730, 175864, 199538, 210040, 219830, 273052, 291460, 341315, 399076, 439660, 498845, 546104, 582920, 682630, 798152, 879320, 997690, 1296997, 1365260, 1995380, 2593994, 2730520, 3990760, 5187988, 6484985, 10375976, 12969970, 25939940, 51879880]

約数ペア:

[(1, 51879880), (2, 25939940), (4, 12969970), (5, 10375976), (8, 6484985), (10, 5187988), (13, 3990760), (19, 2730520), (20, 2593994), (26, 1995380), (38, 1365260), (40, 1296997), (52, 997690), (59, 879320), (65, 798152), (76, 682630), (89, 582920), (95, 546104), (104, 498845), (118, 439660), (130, 399076), (152, 341315), (178, 291460), (190, 273052), (236, 219830), (247, 210040), (260, 199538), (295, 175864), (356, 145730), (380, 136526), (445, 116584), (472, 109915), (494, 105020), (520, 99769), (590, 87932), (712, 72865), (760, 68263), (767, 67640), (890, 58292), (988, 52510), (1121, 46280), (1157, 44840), (1180, 43966), (1235, 42008), (1534, 33820), (1691, 30680), (1780, 29146), (1976, 26255), (2242, 23140), (2314, 22420), (2360, 21983), (2470, 21004), (3068, 16910), (3382, 15340), (3560, 14573), (3835, 13528), (4484, 11570), (4628, 11210), (4940, 10502), (5251, 9880), (5605, 9256), (5785, 8968), (6136, 8455), (6764, 7670)]