51386920

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{5813}}^1$

素因数の和:5854

約数の個数: 64

約数和(自身を含む): 131861520

約数和(自身を除く): 80474600

約数列:

[1, 2, 4, 5, 8, 10, 13, 17, 20, 26, 34, 40, 52, 65, 68, 85, 104, 130, 136, 170, 221, 260, 340, 442, 520, 680, 884, 1105, 1768, 2210, 4420, 5813, 8840, 11626, 23252, 29065, 46504, 58130, 75569, 98821, 116260, 151138, 197642, 232520, 302276, 377845, 395284, 494105, 604552, 755690, 790568, 988210, 1284673, 1511380, 1976420, 2569346, 3022760, 3952840, 5138692, 6423365, 10277384, 12846730, 25693460, 51386920]

約数ペア:

[(1, 51386920), (2, 25693460), (4, 12846730), (5, 10277384), (8, 6423365), (10, 5138692), (13, 3952840), (17, 3022760), (20, 2569346), (26, 1976420), (34, 1511380), (40, 1284673), (52, 988210), (65, 790568), (68, 755690), (85, 604552), (104, 494105), (130, 395284), (136, 377845), (170, 302276), (221, 232520), (260, 197642), (340, 151138), (442, 116260), (520, 98821), (680, 75569), (884, 58130), (1105, 46504), (1768, 29065), (2210, 23252), (4420, 11626), (5813, 8840)]