40338980

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{79}}^1\times {\mathrm{211}}^1$

素因数の和:321

約数の個数: 72

約数和(自身を含む): 94738560

約数和(自身を除く): 54399580

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 79, 110, 121, 158, 211, 220, 242, 316, 395, 422, 484, 605, 790, 844, 869, 1055, 1210, 1580, 1738, 2110, 2321, 2420, 3476, 4220, 4345, 4642, 8690, 9284, 9559, 11605, 16669, 17380, 19118, 23210, 25531, 33338, 38236, 46420, 47795, 51062, 66676, 83345, 95590, 102124, 127655, 166690, 183359, 191180, 255310, 333380, 366718, 510620, 733436, 916795, 1833590, 2016949, 3667180, 4033898, 8067796, 10084745, 20169490, 40338980]

約数ペア:

[(1, 40338980), (2, 20169490), (4, 10084745), (5, 8067796), (10, 4033898), (11, 3667180), (20, 2016949), (22, 1833590), (44, 916795), (55, 733436), (79, 510620), (110, 366718), (121, 333380), (158, 255310), (211, 191180), (220, 183359), (242, 166690), (316, 127655), (395, 102124), (422, 95590), (484, 83345), (605, 66676), (790, 51062), (844, 47795), (869, 46420), (1055, 38236), (1210, 33338), (1580, 25531), (1738, 23210), (2110, 19118), (2321, 17380), (2420, 16669), (3476, 11605), (4220, 9559), (4345, 9284), (4642, 8690)]