28294640

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^2\times {\mathrm{37}}^1\times {\mathrm{79}}^1$

素因数の和:151

約数の個数: 120

約数和(自身を含む): 75203520

約数和(自身を除く): 46908880

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 37, 40, 44, 55, 74, 79, 80, 88, 110, 121, 148, 158, 176, 185, 220, 242, 296, 316, 370, 395, 407, 440, 484, 592, 605, 632, 740, 790, 814, 869, 880, 968, 1210, 1264, 1480, 1580, 1628, 1738, 1936, 2035, 2420, 2923, 2960, 3160, 3256, 3476, 4070, 4345, 4477, 4840, 5846, 6320, 6512, 6952, 8140, 8690, 8954, 9559, 9680, 11692, 13904, 14615, 16280, 17380, 17908, 19118, 22385, 23384, 29230, 32153, 32560, 34760, 35816, 38236, 44770, 46768, 47795, 58460, 64306, 69520, 71632, 76472, 89540, 95590, 116920, 128612, 152944, 160765, 179080, 191180, 233840, 257224, 321530, 353683, 358160, 382360, 514448, 643060, 707366, 764720, 1286120, 1414732, 1768415, 2572240, 2829464, 3536830, 5658928, 7073660, 14147320, 28294640]

約数ペア:

[(1, 28294640), (2, 14147320), (4, 7073660), (5, 5658928), (8, 3536830), (10, 2829464), (11, 2572240), (16, 1768415), (20, 1414732), (22, 1286120), (37, 764720), (40, 707366), (44, 643060), (55, 514448), (74, 382360), (79, 358160), (80, 353683), (88, 321530), (110, 257224), (121, 233840), (148, 191180), (158, 179080), (176, 160765), (185, 152944), (220, 128612), (242, 116920), (296, 95590), (316, 89540), (370, 76472), (395, 71632), (407, 69520), (440, 64306), (484, 58460), (592, 47795), (605, 46768), (632, 44770), (740, 38236), (790, 35816), (814, 34760), (869, 32560), (880, 32153), (968, 29230), (1210, 23384), (1264, 22385), (1480, 19118), (1580, 17908), (1628, 17380), (1738, 16280), (1936, 14615), (2035, 13904), (2420, 11692), (2923, 9680), (2960, 9559), (3160, 8954), (3256, 8690), (3476, 8140), (4070, 6952), (4345, 6512), (4477, 6320), (4840, 5846)]