9979640

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{613}}^1$

素因数の和:672

約数の個数: 64

約数和(自身を含む): 25198560

約数和(自身を除く): 15218920

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 37, 40, 44, 55, 74, 88, 110, 148, 185, 220, 296, 370, 407, 440, 613, 740, 814, 1226, 1480, 1628, 2035, 2452, 3065, 3256, 4070, 4904, 6130, 6743, 8140, 12260, 13486, 16280, 22681, 24520, 26972, 33715, 45362, 53944, 67430, 90724, 113405, 134860, 181448, 226810, 249491, 269720, 453620, 498982, 907240, 997964, 1247455, 1995928, 2494910, 4989820, 9979640]

約数ペア:

[(1, 9979640), (2, 4989820), (4, 2494910), (5, 1995928), (8, 1247455), (10, 997964), (11, 907240), (20, 498982), (22, 453620), (37, 269720), (40, 249491), (44, 226810), (55, 181448), (74, 134860), (88, 113405), (110, 90724), (148, 67430), (185, 53944), (220, 45362), (296, 33715), (370, 26972), (407, 24520), (440, 22681), (613, 16280), (740, 13486), (814, 12260), (1226, 8140), (1480, 6743), (1628, 6130), (2035, 4904), (2452, 4070), (3065, 3256)]