18335900

素因数分解:

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

素因数の和:315

約数の個数: 72

約数和(自身を含む): 44163840

約数和(自身を除く): 25827940

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 25, 44, 50, 55, 79, 100, 110, 158, 211, 220, 275, 316, 395, 422, 550, 790, 844, 869, 1055, 1100, 1580, 1738, 1975, 2110, 2321, 3476, 3950, 4220, 4345, 4642, 5275, 7900, 8690, 9284, 10550, 11605, 16669, 17380, 21100, 21725, 23210, 33338, 43450, 46420, 58025, 66676, 83345, 86900, 116050, 166690, 183359, 232100, 333380, 366718, 416725, 733436, 833450, 916795, 1666900, 1833590, 3667180, 4583975, 9167950, 18335900]

約数ペア:

[(1, 18335900), (2, 9167950), (4, 4583975), (5, 3667180), (10, 1833590), (11, 1666900), (20, 916795), (22, 833450), (25, 733436), (44, 416725), (50, 366718), (55, 333380), (79, 232100), (100, 183359), (110, 166690), (158, 116050), (211, 86900), (220, 83345), (275, 66676), (316, 58025), (395, 46420), (422, 43450), (550, 33338), (790, 23210), (844, 21725), (869, 21100), (1055, 17380), (1100, 16669), (1580, 11605), (1738, 10550), (1975, 9284), (2110, 8690), (2321, 7900), (3476, 5275), (3950, 4642), (4220, 4345)]