398371920

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{1659883}}^1$

素因数の和:1659899

約数の個数: 40

約数和(自身を含む): 1234953696

約数和(自身を除く): 836581776

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 1659883, 3319766, 4979649, 6639532, 8299415, 9959298, 13279064, 16598830, 19918596, 24898245, 26558128, 33197660, 39837192, 49796490, 66395320, 79674384, 99592980, 132790640, 199185960, 398371920]

約数ペア:

[(1, 398371920), (2, 199185960), (3, 132790640), (4, 99592980), (5, 79674384), (6, 66395320), (8, 49796490), (10, 39837192), (12, 33197660), (15, 26558128), (16, 24898245), (20, 19918596), (24, 16598830), (30, 13279064), (40, 9959298), (48, 8299415), (60, 6639532), (80, 4979649), (120, 3319766), (240, 1659883)]