215008900

素因数分解:

$2^2\times 5^2\times {\mathrm{29}}^1\times {\mathrm{151}}^1\times {\mathrm{491}}^1$

素因数の和:685

約数の個数: 72

約数和(自身を含む): 486843840

約数和(自身を除く): 271834940

約数列:

[1, 2, 4, 5, 10, 20, 25, 29, 50, 58, 100, 116, 145, 151, 290, 302, 491, 580, 604, 725, 755, 982, 1450, 1510, 1964, 2455, 2900, 3020, 3775, 4379, 4910, 7550, 8758, 9820, 12275, 14239, 15100, 17516, 21895, 24550, 28478, 43790, 49100, 56956, 71195, 74141, 87580, 109475, 142390, 148282, 218950, 284780, 296564, 355975, 370705, 437900, 711950, 741410, 1423900, 1482820, 1853525, 2150089, 3707050, 4300178, 7414100, 8600356, 10750445, 21500890, 43001780, 53752225, 107504450, 215008900]

約数ペア:

[(1, 215008900), (2, 107504450), (4, 53752225), (5, 43001780), (10, 21500890), (20, 10750445), (25, 8600356), (29, 7414100), (50, 4300178), (58, 3707050), (100, 2150089), (116, 1853525), (145, 1482820), (151, 1423900), (290, 741410), (302, 711950), (491, 437900), (580, 370705), (604, 355975), (725, 296564), (755, 284780), (982, 218950), (1450, 148282), (1510, 142390), (1964, 109475), (2455, 87580), (2900, 74141), (3020, 71195), (3775, 56956), (4379, 49100), (4910, 43790), (7550, 28478), (8758, 24550), (9820, 21895), (12275, 17516), (14239, 15100)]