19697080

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37879}}^1$

素因数の和:37903

約数の個数: 32

約数和(自身を含む): 47728800

約数和(自身を除く): 28031720

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 37879, 75758, 151516, 189395, 303032, 378790, 492427, 757580, 984854, 1515160, 1969708, 2462135, 3939416, 4924270, 9848540, 19697080]

約数ペア:

[(1, 19697080), (2, 9848540), (4, 4924270), (5, 3939416), (8, 2462135), (10, 1969708), (13, 1515160), (20, 984854), (26, 757580), (40, 492427), (52, 378790), (65, 303032), (104, 189395), (130, 151516), (260, 75758), (520, 37879)]