18795967720

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{27641129}}^1$

素因数の和:27641157

約数の個数: 32

約数和(自身を含む): 44778630600

約数和(自身を除く): 25982662880

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 680, 27641129, 55282258, 110564516, 138205645, 221129032, 276411290, 469899193, 552822580, 939798386, 1105645160, 1879596772, 2349495965, 3759193544, 4698991930, 9397983860, 18795967720]

約数ペア:

[(1, 18795967720), (2, 9397983860), (4, 4698991930), (5, 3759193544), (8, 2349495965), (10, 1879596772), (17, 1105645160), (20, 939798386), (34, 552822580), (40, 469899193), (68, 276411290), (85, 221129032), (136, 138205645), (170, 110564516), (340, 55282258), (680, 27641129)]