215585279

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{73}}^1\times {\mathrm{83}}^1$

素因数の和:216

約数の個数: 64

約数和(自身を含む): 300754944

約数和(自身を除く): 85169665

約数列:

[1, 7, 13, 17, 23, 73, 83, 91, 119, 161, 221, 299, 391, 511, 581, 949, 1079, 1241, 1411, 1547, 1679, 1909, 2093, 2737, 5083, 6059, 6643, 7553, 8687, 9877, 11753, 13363, 16133, 18343, 21827, 24817, 28543, 32453, 35581, 42413, 78767, 103003, 112931, 128401, 139357, 152789, 173719, 199801, 227171, 371059, 421889, 551369, 721021, 975499, 1339039, 1811641, 2369069, 2597413, 2953223, 9373273, 12681487, 16583483, 30797897, 215585279]

約数ペア:

[(1, 215585279), (7, 30797897), (13, 16583483), (17, 12681487), (23, 9373273), (73, 2953223), (83, 2597413), (91, 2369069), (119, 1811641), (161, 1339039), (221, 975499), (299, 721021), (391, 551369), (511, 421889), (581, 371059), (949, 227171), (1079, 199801), (1241, 173719), (1411, 152789), (1547, 139357), (1679, 128401), (1909, 112931), (2093, 103003), (2737, 78767), (5083, 42413), (6059, 35581), (6643, 32453), (7553, 28543), (8687, 24817), (9877, 21827), (11753, 18343), (13363, 16133)]