80491366840

素因数分解:

$2^3\times 5^1\times {\mathrm{563}}^1\times {\mathrm{881}}^1\times {\mathrm{4057}}^1$

素因数の和:5512

約数の個数: 64

約数和(自身を含む): 181677958560

約数和(自身を除く): 101186591720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 563, 881, 1126, 1762, 2252, 2815, 3524, 4057, 4405, 4504, 5630, 7048, 8114, 8810, 11260, 16228, 17620, 20285, 22520, 32456, 35240, 40570, 81140, 162280, 496003, 992006, 1984012, 2284091, 2480015, 3574217, 3968024, 4568182, 4960030, 7148434, 9136364, 9920060, 11420455, 14296868, 17871085, 18272728, 19840120, 22840910, 28593736, 35742170, 45681820, 71484340, 91363640, 142968680, 2012284171, 4024568342, 8049136684, 10061420855, 16098273368, 20122841710, 40245683420, 80491366840]

約数ペア:

[(1, 80491366840), (2, 40245683420), (4, 20122841710), (5, 16098273368), (8, 10061420855), (10, 8049136684), (20, 4024568342), (40, 2012284171), (563, 142968680), (881, 91363640), (1126, 71484340), (1762, 45681820), (2252, 35742170), (2815, 28593736), (3524, 22840910), (4057, 19840120), (4405, 18272728), (4504, 17871085), (5630, 14296868), (7048, 11420455), (8114, 9920060), (8810, 9136364), (11260, 7148434), (16228, 4960030), (17620, 4568182), (20285, 3968024), (22520, 3574217), (32456, 2480015), (35240, 2284091), (40570, 1984012), (81140, 992006), (162280, 496003)]