19289920

素因数分解:

$2^6\times 5^1\times {\mathrm{13}}^1\times {\mathrm{4637}}^1$

素因数の和:4667

約数の個数: 56

約数和(自身を含む): 49478184

約数和(自身を除く): 30188264

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 104, 130, 160, 208, 260, 320, 416, 520, 832, 1040, 2080, 4160, 4637, 9274, 18548, 23185, 37096, 46370, 60281, 74192, 92740, 120562, 148384, 185480, 241124, 296768, 301405, 370960, 482248, 602810, 741920, 964496, 1205620, 1483840, 1928992, 2411240, 3857984, 4822480, 9644960, 19289920]

約数ペア:

[(1, 19289920), (2, 9644960), (4, 4822480), (5, 3857984), (8, 2411240), (10, 1928992), (13, 1483840), (16, 1205620), (20, 964496), (26, 741920), (32, 602810), (40, 482248), (52, 370960), (64, 301405), (65, 296768), (80, 241124), (104, 185480), (130, 148384), (160, 120562), (208, 92740), (260, 74192), (320, 60281), (416, 46370), (520, 37096), (832, 23185), (1040, 18548), (2080, 9274), (4160, 4637)]