31012640

素因数分解:

$2^5\times 5^1\times {\mathrm{239}}^1\times {\mathrm{811}}^1$

素因数の和:1065

約数の個数: 48

約数和(自身を含む): 73664640

約数和(自身を除く): 42652000

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 239, 478, 811, 956, 1195, 1622, 1912, 2390, 3244, 3824, 4055, 4780, 6488, 7648, 8110, 9560, 12976, 16220, 19120, 25952, 32440, 38240, 64880, 129760, 193829, 387658, 775316, 969145, 1550632, 1938290, 3101264, 3876580, 6202528, 7753160, 15506320, 31012640]

約数ペア:

[(1, 31012640), (2, 15506320), (4, 7753160), (5, 6202528), (8, 3876580), (10, 3101264), (16, 1938290), (20, 1550632), (32, 969145), (40, 775316), (80, 387658), (160, 193829), (239, 129760), (478, 64880), (811, 38240), (956, 32440), (1195, 25952), (1622, 19120), (1912, 16220), (2390, 12976), (3244, 9560), (3824, 8110), (4055, 7648), (4780, 6488)]