31661480

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{101}}^1\times {\mathrm{461}}^1$

素因数の和:590

約数の個数: 64

約数和(自身を含む): 76340880

約数和(自身を除く): 44679400

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 101, 136, 170, 202, 340, 404, 461, 505, 680, 808, 922, 1010, 1717, 1844, 2020, 2305, 3434, 3688, 4040, 4610, 6868, 7837, 8585, 9220, 13736, 15674, 17170, 18440, 31348, 34340, 39185, 46561, 62696, 68680, 78370, 93122, 156740, 186244, 232805, 313480, 372488, 465610, 791537, 931220, 1583074, 1862440, 3166148, 3957685, 6332296, 7915370, 15830740, 31661480]

約数ペア:

[(1, 31661480), (2, 15830740), (4, 7915370), (5, 6332296), (8, 3957685), (10, 3166148), (17, 1862440), (20, 1583074), (34, 931220), (40, 791537), (68, 465610), (85, 372488), (101, 313480), (136, 232805), (170, 186244), (202, 156740), (340, 93122), (404, 78370), (461, 68680), (505, 62696), (680, 46561), (808, 39185), (922, 34340), (1010, 31348), (1717, 18440), (1844, 17170), (2020, 15674), (2305, 13736), (3434, 9220), (3688, 8585), (4040, 7837), (4610, 6868)]