20839260

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{26717}}^1$

素因数の和:26742

約数の個数: 48

約数和(自身を含む): 62840736

約数和(自身を除く): 42001476

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, 26717, 53434, 80151, 106868, 133585, 160302, 267170, 320604, 347321, 400755, 534340, 694642, 801510, 1041963, 1389284, 1603020, 1736605, 2083926, 3473210, 4167852, 5209815, 6946420, 10419630, 20839260]

約数ペア:

[(1, 20839260), (2, 10419630), (3, 6946420), (4, 5209815), (5, 4167852), (6, 3473210), (10, 2083926), (12, 1736605), (13, 1603020), (15, 1389284), (20, 1041963), (26, 801510), (30, 694642), (39, 534340), (52, 400755), (60, 347321), (65, 320604), (78, 267170), (130, 160302), (156, 133585), (195, 106868), (260, 80151), (390, 53434), (780, 26717)]