18272540

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{6389}}^1$

素因数の和:6422

約数の個数: 48

約数和(自身を含む): 45087840

約数和(自身を除く): 26815300

約数列:

[1, 2, 4, 5, 10, 11, 13, 20, 22, 26, 44, 52, 55, 65, 110, 130, 143, 220, 260, 286, 572, 715, 1430, 2860, 6389, 12778, 25556, 31945, 63890, 70279, 83057, 127780, 140558, 166114, 281116, 332228, 351395, 415285, 702790, 830570, 913627, 1405580, 1661140, 1827254, 3654508, 4568135, 9136270, 18272540]

約数ペア:

[(1, 18272540), (2, 9136270), (4, 4568135), (5, 3654508), (10, 1827254), (11, 1661140), (13, 1405580), (20, 913627), (22, 830570), (26, 702790), (44, 415285), (52, 351395), (55, 332228), (65, 281116), (110, 166114), (130, 140558), (143, 127780), (220, 83057), (260, 70279), (286, 63890), (572, 31945), (715, 25556), (1430, 12778), (2860, 6389)]