19247540

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{181}}^1\times {\mathrm{409}}^1$

素因数の和:612

約数の個数: 48

約数和(自身を含む): 43876560

約数和(自身を除く): 24629020

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 181, 260, 362, 409, 724, 818, 905, 1636, 1810, 2045, 2353, 3620, 4090, 4706, 5317, 8180, 9412, 10634, 11765, 21268, 23530, 26585, 47060, 53170, 74029, 106340, 148058, 296116, 370145, 740290, 962377, 1480580, 1924754, 3849508, 4811885, 9623770, 19247540]

約数ペア:

[(1, 19247540), (2, 9623770), (4, 4811885), (5, 3849508), (10, 1924754), (13, 1480580), (20, 962377), (26, 740290), (52, 370145), (65, 296116), (130, 148058), (181, 106340), (260, 74029), (362, 53170), (409, 47060), (724, 26585), (818, 23530), (905, 21268), (1636, 11765), (1810, 10634), (2045, 9412), (2353, 8180), (3620, 5317), (4090, 4706)]