90312820

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{97}}^1\times {\mathrm{3581}}^1$

素因数の和:3700

約数の個数: 48

約数和(自身を含む): 206409168

約数和(自身を除く): 116096348

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 97, 130, 194, 260, 388, 485, 970, 1261, 1940, 2522, 3581, 5044, 6305, 7162, 12610, 14324, 17905, 25220, 35810, 46553, 71620, 93106, 186212, 232765, 347357, 465530, 694714, 931060, 1389428, 1736785, 3473570, 4515641, 6947140, 9031282, 18062564, 22578205, 45156410, 90312820]

約数ペア:

[(1, 90312820), (2, 45156410), (4, 22578205), (5, 18062564), (10, 9031282), (13, 6947140), (20, 4515641), (26, 3473570), (52, 1736785), (65, 1389428), (97, 931060), (130, 694714), (194, 465530), (260, 347357), (388, 232765), (485, 186212), (970, 93106), (1261, 71620), (1940, 46553), (2522, 35810), (3581, 25220), (5044, 17905), (6305, 14324), (7162, 12610)]