128791120

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{84731}}^1$

素因数の和:84763

約数の個数: 40

約数和(自身を含む): 315203040

約数和(自身を除く): 186411920

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 380, 760, 1520, 84731, 169462, 338924, 423655, 677848, 847310, 1355696, 1609889, 1694620, 3219778, 3389240, 6439556, 6778480, 8049445, 12879112, 16098890, 25758224, 32197780, 64395560, 128791120]

約数ペア:

[(1, 128791120), (2, 64395560), (4, 32197780), (5, 25758224), (8, 16098890), (10, 12879112), (16, 8049445), (19, 6778480), (20, 6439556), (38, 3389240), (40, 3219778), (76, 1694620), (80, 1609889), (95, 1355696), (152, 847310), (190, 677848), (304, 423655), (380, 338924), (760, 169462), (1520, 84731)]