4281640

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{263}}^1$

素因数の和:322

約数の個数: 64

約数和(自身を含む): 10834560

約数和(自身を除く): 6552920

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 37, 40, 44, 55, 74, 88, 110, 148, 185, 220, 263, 296, 370, 407, 440, 526, 740, 814, 1052, 1315, 1480, 1628, 2035, 2104, 2630, 2893, 3256, 4070, 5260, 5786, 8140, 9731, 10520, 11572, 14465, 16280, 19462, 23144, 28930, 38924, 48655, 57860, 77848, 97310, 107041, 115720, 194620, 214082, 389240, 428164, 535205, 856328, 1070410, 2140820, 4281640]

約数ペア:

[(1, 4281640), (2, 2140820), (4, 1070410), (5, 856328), (8, 535205), (10, 428164), (11, 389240), (20, 214082), (22, 194620), (37, 115720), (40, 107041), (44, 97310), (55, 77848), (74, 57860), (88, 48655), (110, 38924), (148, 28930), (185, 23144), (220, 19462), (263, 16280), (296, 14465), (370, 11572), (407, 10520), (440, 9731), (526, 8140), (740, 5786), (814, 5260), (1052, 4070), (1315, 3256), (1480, 2893), (1628, 2630), (2035, 2104)]