221323180

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{181}}^1\times {\mathrm{4703}}^1$

素因数の和:4906

約数の個数: 48

約数和(自身を含む): 503403264

約数和(自身を除く): 282080084

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 181, 260, 362, 724, 905, 1810, 2353, 3620, 4703, 4706, 9406, 9412, 11765, 18812, 23515, 23530, 47030, 47060, 61139, 94060, 122278, 244556, 305695, 611390, 851243, 1222780, 1702486, 3404972, 4256215, 8512430, 11066159, 17024860, 22132318, 44264636, 55330795, 110661590, 221323180]

約数ペア:

[(1, 221323180), (2, 110661590), (4, 55330795), (5, 44264636), (10, 22132318), (13, 17024860), (20, 11066159), (26, 8512430), (52, 4256215), (65, 3404972), (130, 1702486), (181, 1222780), (260, 851243), (362, 611390), (724, 305695), (905, 244556), (1810, 122278), (2353, 94060), (3620, 61139), (4703, 47060), (4706, 47030), (9406, 23530), (9412, 23515), (11765, 18812)]