90475780

素因数分解:

$2^2\times 5^1\times {\mathrm{97}}^1\times {\mathrm{149}}^1\times {\mathrm{313}}^1$

素因数の和:568

約数の個数: 48

約数和(自身を含む): 193863600

約数和(自身を除く): 103387820

約数列:

[1, 2, 4, 5, 10, 20, 97, 149, 194, 298, 313, 388, 485, 596, 626, 745, 970, 1252, 1490, 1565, 1940, 2980, 3130, 6260, 14453, 28906, 30361, 46637, 57812, 60722, 72265, 93274, 121444, 144530, 151805, 186548, 233185, 289060, 303610, 466370, 607220, 932740, 4523789, 9047578, 18095156, 22618945, 45237890, 90475780]

約数ペア:

[(1, 90475780), (2, 45237890), (4, 22618945), (5, 18095156), (10, 9047578), (20, 4523789), (97, 932740), (149, 607220), (194, 466370), (298, 303610), (313, 289060), (388, 233185), (485, 186548), (596, 151805), (626, 144530), (745, 121444), (970, 93274), (1252, 72265), (1490, 60722), (1565, 57812), (1940, 46637), (2980, 30361), (3130, 28906), (6260, 14453)]