1320253520

素因数分解:

$2^4\times 5^1\times {\mathrm{71}}^1\times {\mathrm{232439}}^1$

素因数の和:232523

約数の個数: 40

約数和(自身を含む): 3112836480

約数和(自身を除く): 1792582960

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 71, 80, 142, 284, 355, 568, 710, 1136, 1420, 2840, 5680, 232439, 464878, 929756, 1162195, 1859512, 2324390, 3719024, 4648780, 9297560, 16503169, 18595120, 33006338, 66012676, 82515845, 132025352, 165031690, 264050704, 330063380, 660126760, 1320253520]

約数ペア:

[(1, 1320253520), (2, 660126760), (4, 330063380), (5, 264050704), (8, 165031690), (10, 132025352), (16, 82515845), (20, 66012676), (40, 33006338), (71, 18595120), (80, 16503169), (142, 9297560), (284, 4648780), (355, 3719024), (568, 2324390), (710, 1859512), (1136, 1162195), (1420, 929756), (2840, 464878), (5680, 232439)]