19707680

素因数分解:

$2^5\times 5^1\times {\mathrm{37}}^1\times {\mathrm{3329}}^1$

素因数の和:3381

約数の個数: 48

約数和(自身を含む): 47832120

約数和(自身を除く): 28124440

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 37, 40, 74, 80, 148, 160, 185, 296, 370, 592, 740, 1184, 1480, 2960, 3329, 5920, 6658, 13316, 16645, 26632, 33290, 53264, 66580, 106528, 123173, 133160, 246346, 266320, 492692, 532640, 615865, 985384, 1231730, 1970768, 2463460, 3941536, 4926920, 9853840, 19707680]

約数ペア:

[(1, 19707680), (2, 9853840), (4, 4926920), (5, 3941536), (8, 2463460), (10, 1970768), (16, 1231730), (20, 985384), (32, 615865), (37, 532640), (40, 492692), (74, 266320), (80, 246346), (148, 133160), (160, 123173), (185, 106528), (296, 66580), (370, 53264), (592, 33290), (740, 26632), (1184, 16645), (1480, 13316), (2960, 6658), (3329, 5920)]