215004530

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^2\times {\mathrm{1721}}^1$

素因数の和:1803

約数の個数: 48

約数和(自身を含む): 430906392

約数和(自身を除く): 215901862

約数列:

[1, 2, 5, 10, 13, 26, 31, 62, 65, 130, 155, 310, 403, 806, 961, 1721, 1922, 2015, 3442, 4030, 4805, 8605, 9610, 12493, 17210, 22373, 24986, 44746, 53351, 62465, 106702, 111865, 124930, 223730, 266755, 533510, 693563, 1387126, 1653881, 3307762, 3467815, 6935630, 8269405, 16538810, 21500453, 43000906, 107502265, 215004530]

約数ペア:

[(1, 215004530), (2, 107502265), (5, 43000906), (10, 21500453), (13, 16538810), (26, 8269405), (31, 6935630), (62, 3467815), (65, 3307762), (130, 1653881), (155, 1387126), (310, 693563), (403, 533510), (806, 266755), (961, 223730), (1721, 124930), (1922, 111865), (2015, 106702), (3442, 62465), (4030, 53351), (4805, 44746), (8605, 24986), (9610, 22373), (12493, 17210)]