20097420

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{109}}^1\times {\mathrm{439}}^1$

素因数の和:567

約数の個数: 96

約数和(自身を含む): 65049600

約数和(自身を除く): 44952180

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 109, 140, 210, 218, 327, 420, 436, 439, 545, 654, 763, 878, 1090, 1308, 1317, 1526, 1635, 1756, 2180, 2195, 2289, 2634, 3052, 3073, 3270, 3815, 4390, 4578, 5268, 6146, 6540, 6585, 7630, 8780, 9156, 9219, 11445, 12292, 13170, 15260, 15365, 18438, 22890, 26340, 30730, 36876, 45780, 46095, 47851, 61460, 92190, 95702, 143553, 184380, 191404, 239255, 287106, 334957, 478510, 574212, 669914, 717765, 957020, 1004871, 1339828, 1435530, 1674785, 2009742, 2871060, 3349570, 4019484, 5024355, 6699140, 10048710, 20097420]

約数ペア:

[(1, 20097420), (2, 10048710), (3, 6699140), (4, 5024355), (5, 4019484), (6, 3349570), (7, 2871060), (10, 2009742), (12, 1674785), (14, 1435530), (15, 1339828), (20, 1004871), (21, 957020), (28, 717765), (30, 669914), (35, 574212), (42, 478510), (60, 334957), (70, 287106), (84, 239255), (105, 191404), (109, 184380), (140, 143553), (210, 95702), (218, 92190), (327, 61460), (420, 47851), (436, 46095), (439, 45780), (545, 36876), (654, 30730), (763, 26340), (878, 22890), (1090, 18438), (1308, 15365), (1317, 15260), (1526, 13170), (1635, 12292), (1756, 11445), (2180, 9219), (2195, 9156), (2289, 8780), (2634, 7630), (3052, 6585), (3073, 6540), (3270, 6146), (3815, 5268), (4390, 4578)]