91578380

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{149}}^1\times {\mathrm{389}}^1$

素因数の和:626

約数の個数: 48

約数和(自身を含む): 196560000

約数和(自身を除く): 104981620

約数列:

[1, 2, 4, 5, 10, 20, 79, 149, 158, 298, 316, 389, 395, 596, 745, 778, 790, 1490, 1556, 1580, 1945, 2980, 3890, 7780, 11771, 23542, 30731, 47084, 57961, 58855, 61462, 115922, 117710, 122924, 153655, 231844, 235420, 289805, 307310, 579610, 614620, 1159220, 4578919, 9157838, 18315676, 22894595, 45789190, 91578380]

約数ペア:

[(1, 91578380), (2, 45789190), (4, 22894595), (5, 18315676), (10, 9157838), (20, 4578919), (79, 1159220), (149, 614620), (158, 579610), (298, 307310), (316, 289805), (389, 235420), (395, 231844), (596, 153655), (745, 122924), (778, 117710), (790, 115922), (1490, 61462), (1556, 58855), (1580, 57961), (1945, 47084), (2980, 30731), (3890, 23542), (7780, 11771)]