397682720

素因数分解:

$2^5\times 5^1\times {\mathrm{127}}^1\times {\mathrm{19571}}^1$

素因数の和:19713

約数の個数: 48

約数和(自身を含む): 946971648

約数和(自身を除く): 549288928

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 127, 160, 254, 508, 635, 1016, 1270, 2032, 2540, 4064, 5080, 10160, 19571, 20320, 39142, 78284, 97855, 156568, 195710, 313136, 391420, 626272, 782840, 1565680, 2485517, 3131360, 4971034, 9942068, 12427585, 19884136, 24855170, 39768272, 49710340, 79536544, 99420680, 198841360, 397682720]

約数ペア:

[(1, 397682720), (2, 198841360), (4, 99420680), (5, 79536544), (8, 49710340), (10, 39768272), (16, 24855170), (20, 19884136), (32, 12427585), (40, 9942068), (80, 4971034), (127, 3131360), (160, 2485517), (254, 1565680), (508, 782840), (635, 626272), (1016, 391420), (1270, 313136), (2032, 195710), (2540, 156568), (4064, 97855), (5080, 78284), (10160, 39142), (19571, 20320)]