64385360

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{61909}}^1$

素因数の和:61935

約数の個数: 40

約数和(自身を含む): 161213640

約数和(自身を除く): 96828280

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 61909, 123818, 247636, 309545, 495272, 619090, 804817, 990544, 1238180, 1609634, 2476360, 3219268, 4024085, 4952720, 6438536, 8048170, 12877072, 16096340, 32192680, 64385360]

約数ペア:

[(1, 64385360), (2, 32192680), (4, 16096340), (5, 12877072), (8, 8048170), (10, 6438536), (13, 4952720), (16, 4024085), (20, 3219268), (26, 2476360), (40, 1609634), (52, 1238180), (65, 990544), (80, 804817), (104, 619090), (130, 495272), (208, 309545), (260, 247636), (520, 123818), (1040, 61909)]