217428240

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{905951}}^1$

素因数の和:905967

約数の個数: 40

約数和(自身を含む): 674028288

約数和(自身を除く): 456600048

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 905951, 1811902, 2717853, 3623804, 4529755, 5435706, 7247608, 9059510, 10871412, 13589265, 14495216, 18119020, 21742824, 27178530, 36238040, 43485648, 54357060, 72476080, 108714120, 217428240]

約数ペア:

[(1, 217428240), (2, 108714120), (3, 72476080), (4, 54357060), (5, 43485648), (6, 36238040), (8, 27178530), (10, 21742824), (12, 18119020), (15, 14495216), (16, 13589265), (20, 10871412), (24, 9059510), (30, 7247608), (40, 5435706), (48, 4529755), (60, 3623804), (80, 2717853), (120, 1811902), (240, 905951)]