1688680

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{163}}^1$

素因数の和:218

約数の個数: 64

約数和(自身を含む): 4487040

約数和(自身を除く): 2798360

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 37, 40, 56, 70, 74, 140, 148, 163, 185, 259, 280, 296, 326, 370, 518, 652, 740, 815, 1036, 1141, 1295, 1304, 1480, 1630, 2072, 2282, 2590, 3260, 4564, 5180, 5705, 6031, 6520, 9128, 10360, 11410, 12062, 22820, 24124, 30155, 42217, 45640, 48248, 60310, 84434, 120620, 168868, 211085, 241240, 337736, 422170, 844340, 1688680]

約数ペア:

[(1, 1688680), (2, 844340), (4, 422170), (5, 337736), (7, 241240), (8, 211085), (10, 168868), (14, 120620), (20, 84434), (28, 60310), (35, 48248), (37, 45640), (40, 42217), (56, 30155), (70, 24124), (74, 22820), (140, 12062), (148, 11410), (163, 10360), (185, 9128), (259, 6520), (280, 6031), (296, 5705), (326, 5180), (370, 4564), (518, 3260), (652, 2590), (740, 2282), (815, 2072), (1036, 1630), (1141, 1480), (1295, 1304)]