31909240

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{1543}}^1$

素因数の和:1612

約数の個数: 64

約数和(自身を含む): 80040960

約数和(自身を除く): 48131720

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 47, 55, 88, 94, 110, 188, 220, 235, 376, 440, 470, 517, 940, 1034, 1543, 1880, 2068, 2585, 3086, 4136, 5170, 6172, 7715, 10340, 12344, 15430, 16973, 20680, 30860, 33946, 61720, 67892, 72521, 84865, 135784, 145042, 169730, 290084, 339460, 362605, 580168, 678920, 725210, 797731, 1450420, 1595462, 2900840, 3190924, 3988655, 6381848, 7977310, 15954620, 31909240]

約数ペア:

[(1, 31909240), (2, 15954620), (4, 7977310), (5, 6381848), (8, 3988655), (10, 3190924), (11, 2900840), (20, 1595462), (22, 1450420), (40, 797731), (44, 725210), (47, 678920), (55, 580168), (88, 362605), (94, 339460), (110, 290084), (188, 169730), (220, 145042), (235, 135784), (376, 84865), (440, 72521), (470, 67892), (517, 61720), (940, 33946), (1034, 30860), (1543, 20680), (1880, 16973), (2068, 15430), (2585, 12344), (3086, 10340), (4136, 7715), (5170, 6172)]