7918240

素因数分解:

$2^5\times 5^1\times {\mathrm{11}}^2\times {\mathrm{409}}^1$

素因数の和:446

約数の個数: 72

約数和(自身を含む): 20612340

約数和(自身を除く): 12694100

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 80, 88, 110, 121, 160, 176, 220, 242, 352, 409, 440, 484, 605, 818, 880, 968, 1210, 1636, 1760, 1936, 2045, 2420, 3272, 3872, 4090, 4499, 4840, 6544, 8180, 8998, 9680, 13088, 16360, 17996, 19360, 22495, 32720, 35992, 44990, 49489, 65440, 71984, 89980, 98978, 143968, 179960, 197956, 247445, 359920, 395912, 494890, 719840, 791824, 989780, 1583648, 1979560, 3959120, 7918240]

約数ペア:

[(1, 7918240), (2, 3959120), (4, 1979560), (5, 1583648), (8, 989780), (10, 791824), (11, 719840), (16, 494890), (20, 395912), (22, 359920), (32, 247445), (40, 197956), (44, 179960), (55, 143968), (80, 98978), (88, 89980), (110, 71984), (121, 65440), (160, 49489), (176, 44990), (220, 35992), (242, 32720), (352, 22495), (409, 19360), (440, 17996), (484, 16360), (605, 13088), (818, 9680), (880, 8998), (968, 8180), (1210, 6544), (1636, 4840), (1760, 4499), (1936, 4090), (2045, 3872), (2420, 3272)]