20508060976

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{83}}^1\times {\mathrm{69877}}^1$

素因数の和:69998

約数の個数: 80

約数和(自身を含む): 45854502624

約数和(自身を除く): 25346441648

約数列:

[1, 2, 4, 8, 13, 16, 17, 26, 34, 52, 68, 83, 104, 136, 166, 208, 221, 272, 332, 442, 664, 884, 1079, 1328, 1411, 1768, 2158, 2822, 3536, 4316, 5644, 8632, 11288, 17264, 18343, 22576, 36686, 69877, 73372, 139754, 146744, 279508, 293488, 559016, 908401, 1118032, 1187909, 1816802, 2375818, 3633604, 4751636, 5799791, 7267208, 9503272, 11599582, 14534416, 15442817, 19006544, 23199164, 30885634, 46398328, 61771268, 75397283, 92796656, 98596447, 123542536, 150794566, 197192894, 247085072, 301589132, 394385788, 603178264, 788771576, 1206356528, 1281753811, 1577543152, 2563507622, 5127015244, 10254030488, 20508060976]

約数ペア:

[(1, 20508060976), (2, 10254030488), (4, 5127015244), (8, 2563507622), (13, 1577543152), (16, 1281753811), (17, 1206356528), (26, 788771576), (34, 603178264), (52, 394385788), (68, 301589132), (83, 247085072), (104, 197192894), (136, 150794566), (166, 123542536), (208, 98596447), (221, 92796656), (272, 75397283), (332, 61771268), (442, 46398328), (664, 30885634), (884, 23199164), (1079, 19006544), (1328, 15442817), (1411, 14534416), (1768, 11599582), (2158, 9503272), (2822, 7267208), (3536, 5799791), (4316, 4751636), (5644, 3633604), (8632, 2375818), (11288, 1816802), (17264, 1187909), (18343, 1118032), (22576, 908401), (36686, 559016), (69877, 293488), (73372, 279508), (139754, 146744)]