31991180

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{1733}}^1$

素因数の和:1826

約数の個数: 48

約数和(自身を含む): 73410624

約数和(自身を除く): 41419444

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 71, 130, 142, 260, 284, 355, 710, 923, 1420, 1733, 1846, 3466, 3692, 4615, 6932, 8665, 9230, 17330, 18460, 22529, 34660, 45058, 90116, 112645, 123043, 225290, 246086, 450580, 492172, 615215, 1230430, 1599559, 2460860, 3199118, 6398236, 7997795, 15995590, 31991180]

約数ペア:

[(1, 31991180), (2, 15995590), (4, 7997795), (5, 6398236), (10, 3199118), (13, 2460860), (20, 1599559), (26, 1230430), (52, 615215), (65, 492172), (71, 450580), (130, 246086), (142, 225290), (260, 123043), (284, 112645), (355, 90116), (710, 45058), (923, 34660), (1420, 22529), (1733, 18460), (1846, 17330), (3466, 9230), (3692, 8665), (4615, 6932)]