31012540

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{181}}^1\times {\mathrm{659}}^1$

素因数の和:862

約数の個数: 48

約数和(自身を含む): 70630560

約数和(自身を除く): 39618020

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 181, 260, 362, 659, 724, 905, 1318, 1810, 2353, 2636, 3295, 3620, 4706, 6590, 8567, 9412, 11765, 13180, 17134, 23530, 34268, 42835, 47060, 85670, 119279, 171340, 238558, 477116, 596395, 1192790, 1550627, 2385580, 3101254, 6202508, 7753135, 15506270, 31012540]

約数ペア:

[(1, 31012540), (2, 15506270), (4, 7753135), (5, 6202508), (10, 3101254), (13, 2385580), (20, 1550627), (26, 1192790), (52, 596395), (65, 477116), (130, 238558), (181, 171340), (260, 119279), (362, 85670), (659, 47060), (724, 42835), (905, 34268), (1318, 23530), (1810, 17134), (2353, 13180), (2636, 11765), (3295, 9412), (3620, 8567), (4706, 6590)]