320212760

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{709}}^1\times {\mathrm{1613}}^1$

素因数の和:2340

約数の個数: 64

約数和(自身を含む): 825076800

約数和(自身を除く): 504864040

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 709, 1418, 1613, 2836, 3226, 3545, 4963, 5672, 6452, 7090, 8065, 9926, 11291, 12904, 14180, 16130, 19852, 22582, 24815, 28360, 32260, 39704, 45164, 49630, 56455, 64520, 90328, 99260, 112910, 198520, 225820, 451640, 1143617, 2287234, 4574468, 5718085, 8005319, 9148936, 11436170, 16010638, 22872340, 32021276, 40026595, 45744680, 64042552, 80053190, 160106380, 320212760]

約数ペア:

[(1, 320212760), (2, 160106380), (4, 80053190), (5, 64042552), (7, 45744680), (8, 40026595), (10, 32021276), (14, 22872340), (20, 16010638), (28, 11436170), (35, 9148936), (40, 8005319), (56, 5718085), (70, 4574468), (140, 2287234), (280, 1143617), (709, 451640), (1418, 225820), (1613, 198520), (2836, 112910), (3226, 99260), (3545, 90328), (4963, 64520), (5672, 56455), (6452, 49630), (7090, 45164), (8065, 39704), (9926, 32260), (11291, 28360), (12904, 24815), (14180, 22582), (16130, 19852)]