20854404

素因数分解:

$2^2\times 3^2\times {\mathrm{41}}^1\times {\mathrm{71}}^1\times {\mathrm{199}}^1$

素因数の和:321

約数の個数: 72

約数和(自身を含む): 55036800

約数和(自身を除く): 34182396

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 41, 71, 82, 123, 142, 164, 199, 213, 246, 284, 369, 398, 426, 492, 597, 639, 738, 796, 852, 1194, 1278, 1476, 1791, 2388, 2556, 2911, 3582, 5822, 7164, 8159, 8733, 11644, 14129, 16318, 17466, 24477, 26199, 28258, 32636, 34932, 42387, 48954, 52398, 56516, 73431, 84774, 97908, 104796, 127161, 146862, 169548, 254322, 293724, 508644, 579289, 1158578, 1737867, 2317156, 3475734, 5213601, 6951468, 10427202, 20854404]

約数ペア:

[(1, 20854404), (2, 10427202), (3, 6951468), (4, 5213601), (6, 3475734), (9, 2317156), (12, 1737867), (18, 1158578), (36, 579289), (41, 508644), (71, 293724), (82, 254322), (123, 169548), (142, 146862), (164, 127161), (199, 104796), (213, 97908), (246, 84774), (284, 73431), (369, 56516), (398, 52398), (426, 48954), (492, 42387), (597, 34932), (639, 32636), (738, 28258), (796, 26199), (852, 24477), (1194, 17466), (1278, 16318), (1476, 14129), (1791, 11644), (2388, 8733), (2556, 8159), (2911, 7164), (3582, 5822)]