51781860

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{22129}}^1$

素因数の和:22157

約数の個数: 72

約数和(自身を含む): 169161720

約数和(自身を除く): 117379860

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 26, 30, 36, 39, 45, 52, 60, 65, 78, 90, 117, 130, 156, 180, 195, 234, 260, 390, 468, 585, 780, 1170, 2340, 22129, 44258, 66387, 88516, 110645, 132774, 199161, 221290, 265548, 287677, 331935, 398322, 442580, 575354, 663870, 796644, 863031, 995805, 1150708, 1327740, 1438385, 1726062, 1991610, 2589093, 2876770, 3452124, 3983220, 4315155, 5178186, 5753540, 8630310, 10356372, 12945465, 17260620, 25890930, 51781860]

約数ペア:

[(1, 51781860), (2, 25890930), (3, 17260620), (4, 12945465), (5, 10356372), (6, 8630310), (9, 5753540), (10, 5178186), (12, 4315155), (13, 3983220), (15, 3452124), (18, 2876770), (20, 2589093), (26, 1991610), (30, 1726062), (36, 1438385), (39, 1327740), (45, 1150708), (52, 995805), (60, 863031), (65, 796644), (78, 663870), (90, 575354), (117, 442580), (130, 398322), (156, 331935), (180, 287677), (195, 265548), (234, 221290), (260, 199161), (390, 132774), (468, 110645), (585, 88516), (780, 66387), (1170, 44258), (2340, 22129)]