13978380

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17921}}^1$

素因数の和:17946

約数の個数: 48

約数和(自身を含む): 42152544

約数和(自身を除く): 28174164

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780, 17921, 35842, 53763, 71684, 89605, 107526, 179210, 215052, 232973, 268815, 358420, 465946, 537630, 698919, 931892, 1075260, 1164865, 1397838, 2329730, 2795676, 3494595, 4659460, 6989190, 13978380]

約数ペア:

[(1, 13978380), (2, 6989190), (3, 4659460), (4, 3494595), (5, 2795676), (6, 2329730), (10, 1397838), (12, 1164865), (13, 1075260), (15, 931892), (20, 698919), (26, 537630), (30, 465946), (39, 358420), (52, 268815), (60, 232973), (65, 215052), (78, 179210), (130, 107526), (156, 89605), (195, 71684), (260, 53763), (390, 35842), (780, 17921)]