51809780

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{79}}^1\times {\mathrm{271}}^1$

素因数の和:381

約数の個数: 72

約数和(自身を含む): 121551360

約数和(自身を除く): 69741580

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 79, 110, 121, 158, 220, 242, 271, 316, 395, 484, 542, 605, 790, 869, 1084, 1210, 1355, 1580, 1738, 2420, 2710, 2981, 3476, 4345, 5420, 5962, 8690, 9559, 11924, 14905, 17380, 19118, 21409, 29810, 32791, 38236, 42818, 47795, 59620, 65582, 85636, 95590, 107045, 131164, 163955, 191180, 214090, 235499, 327910, 428180, 470998, 655820, 941996, 1177495, 2354990, 2590489, 4709980, 5180978, 10361956, 12952445, 25904890, 51809780]

約数ペア:

[(1, 51809780), (2, 25904890), (4, 12952445), (5, 10361956), (10, 5180978), (11, 4709980), (20, 2590489), (22, 2354990), (44, 1177495), (55, 941996), (79, 655820), (110, 470998), (121, 428180), (158, 327910), (220, 235499), (242, 214090), (271, 191180), (316, 163955), (395, 131164), (484, 107045), (542, 95590), (605, 85636), (790, 65582), (869, 59620), (1084, 47795), (1210, 42818), (1355, 38236), (1580, 32791), (1738, 29810), (2420, 21409), (2710, 19118), (2981, 17380), (3476, 14905), (4345, 11924), (5420, 9559), (5962, 8690)]