401023220

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{97}}^1\times {\mathrm{15901}}^1$

素因数の和:16020

約数の個数: 48

約数和(自身を含む): 916336848

約数和(自身を除く): 515313628

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 97, 130, 194, 260, 388, 485, 970, 1261, 1940, 2522, 5044, 6305, 12610, 15901, 25220, 31802, 63604, 79505, 159010, 206713, 318020, 413426, 826852, 1033565, 1542397, 2067130, 3084794, 4134260, 6169588, 7711985, 15423970, 20051161, 30847940, 40102322, 80204644, 100255805, 200511610, 401023220]

約数ペア:

[(1, 401023220), (2, 200511610), (4, 100255805), (5, 80204644), (10, 40102322), (13, 30847940), (20, 20051161), (26, 15423970), (52, 7711985), (65, 6169588), (97, 4134260), (130, 3084794), (194, 2067130), (260, 1542397), (388, 1033565), (485, 826852), (970, 413426), (1261, 318020), (1940, 206713), (2522, 159010), (5044, 79505), (6305, 63604), (12610, 31802), (15901, 25220)]