20176975580

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{439}}^1\times {\mathrm{74131}}^1$

素因数の和:74610

約数の個数: 48

約数和(自身を含む): 43838699520

約数和(自身を除く): 23661723940

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 439, 620, 878, 1756, 2195, 4390, 8780, 13609, 27218, 54436, 68045, 74131, 136090, 148262, 272180, 296524, 370655, 741310, 1482620, 2298061, 4596122, 9192244, 11490305, 22980610, 32543509, 45961220, 65087018, 130174036, 162717545, 325435090, 650870180, 1008848779, 2017697558, 4035395116, 5044243895, 10088487790, 20176975580]

約数ペア:

[(1, 20176975580), (2, 10088487790), (4, 5044243895), (5, 4035395116), (10, 2017697558), (20, 1008848779), (31, 650870180), (62, 325435090), (124, 162717545), (155, 130174036), (310, 65087018), (439, 45961220), (620, 32543509), (878, 22980610), (1756, 11490305), (2195, 9192244), (4390, 4596122), (8780, 2298061), (13609, 1482620), (27218, 741310), (54436, 370655), (68045, 296524), (74131, 272180), (136090, 148262)]