205257820

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{97}}^1\times {\mathrm{3413}}^1$

素因数の和:3550

約数の個数: 48

約数和(自身を含む): 449664768

約数和(自身を除く): 244406948

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 97, 124, 155, 194, 310, 388, 485, 620, 970, 1940, 3007, 3413, 6014, 6826, 12028, 13652, 15035, 17065, 30070, 34130, 60140, 68260, 105803, 211606, 331061, 423212, 529015, 662122, 1058030, 1324244, 1655305, 2116060, 3310610, 6621220, 10262891, 20525782, 41051564, 51314455, 102628910, 205257820]

約数ペア:

[(1, 205257820), (2, 102628910), (4, 51314455), (5, 41051564), (10, 20525782), (20, 10262891), (31, 6621220), (62, 3310610), (97, 2116060), (124, 1655305), (155, 1324244), (194, 1058030), (310, 662122), (388, 529015), (485, 423212), (620, 331061), (970, 211606), (1940, 105803), (3007, 68260), (3413, 60140), (6014, 34130), (6826, 30070), (12028, 17065), (13652, 15035)]