195968980

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{4001}}^1$

素因数の和:4120

約数の個数: 48

約数和(自身を含む): 430295040

約数和(自身を除く): 234326060

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 79, 124, 155, 158, 310, 316, 395, 620, 790, 1580, 2449, 4001, 4898, 8002, 9796, 12245, 16004, 20005, 24490, 40010, 48980, 80020, 124031, 248062, 316079, 496124, 620155, 632158, 1240310, 1264316, 1580395, 2480620, 3160790, 6321580, 9798449, 19596898, 39193796, 48992245, 97984490, 195968980]

約数ペア:

[(1, 195968980), (2, 97984490), (4, 48992245), (5, 39193796), (10, 19596898), (20, 9798449), (31, 6321580), (62, 3160790), (79, 2480620), (124, 1580395), (155, 1264316), (158, 1240310), (310, 632158), (316, 620155), (395, 496124), (620, 316079), (790, 248062), (1580, 124031), (2449, 80020), (4001, 48980), (4898, 40010), (8002, 24490), (9796, 20005), (12245, 16004)]