18754640

素因数分解:

$2^4\times 5^1\times {\mathrm{67}}^1\times {\mathrm{3499}}^1$

素因数の和:3579

約数の個数: 40

約数和(自身を含む): 44268000

約数和(自身を除く): 25513360

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 67, 80, 134, 268, 335, 536, 670, 1072, 1340, 2680, 3499, 5360, 6998, 13996, 17495, 27992, 34990, 55984, 69980, 139960, 234433, 279920, 468866, 937732, 1172165, 1875464, 2344330, 3750928, 4688660, 9377320, 18754640]

約数ペア:

[(1, 18754640), (2, 9377320), (4, 4688660), (5, 3750928), (8, 2344330), (10, 1875464), (16, 1172165), (20, 937732), (40, 468866), (67, 279920), (80, 234433), (134, 139960), (268, 69980), (335, 55984), (536, 34990), (670, 27992), (1072, 17495), (1340, 13996), (2680, 6998), (3499, 5360)]