19503760

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{14341}}^1$

素因数の和:14371

約数の個数: 40

約数和(自身を含む): 48017016

約数和(自身を除く): 28513256

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 272, 340, 680, 1360, 14341, 28682, 57364, 71705, 114728, 143410, 229456, 243797, 286820, 487594, 573640, 975188, 1147280, 1218985, 1950376, 2437970, 3900752, 4875940, 9751880, 19503760]

約数ペア:

[(1, 19503760), (2, 9751880), (4, 4875940), (5, 3900752), (8, 2437970), (10, 1950376), (16, 1218985), (17, 1147280), (20, 975188), (34, 573640), (40, 487594), (68, 286820), (80, 243797), (85, 229456), (136, 143410), (170, 114728), (272, 71705), (340, 57364), (680, 28682), (1360, 14341)]