288913520

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{515917}}^1$

素因数の和:515937

約数の個数: 40

約数和(自身を含む): 767685984

約数和(自身を除く): 478772464

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 515917, 1031834, 2063668, 2579585, 3611419, 4127336, 5159170, 7222838, 8254672, 10318340, 14445676, 18057095, 20636680, 28891352, 36114190, 41273360, 57782704, 72228380, 144456760, 288913520]

約数ペア:

[(1, 288913520), (2, 144456760), (4, 72228380), (5, 57782704), (7, 41273360), (8, 36114190), (10, 28891352), (14, 20636680), (16, 18057095), (20, 14445676), (28, 10318340), (35, 8254672), (40, 7222838), (56, 5159170), (70, 4127336), (80, 3611419), (112, 2579585), (140, 2063668), (280, 1031834), (560, 515917)]