20528036170

素因数分解:

$2^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{71}}^1\times {\mathrm{509}}^1\times {\mathrm{1321}}^1$

素因数の和:1951

約数の個数: 64

約数和(自身を含む): 38446721280

約数和(自身を除く): 17918685110

約数列:

[1, 2, 5, 10, 43, 71, 86, 142, 215, 355, 430, 509, 710, 1018, 1321, 2545, 2642, 3053, 5090, 6106, 6605, 13210, 15265, 21887, 30530, 36139, 43774, 56803, 72278, 93791, 109435, 113606, 180695, 187582, 218870, 284015, 361390, 468955, 568030, 672389, 937910, 1344778, 1553977, 3107954, 3361945, 4033013, 6723890, 7769885, 8066026, 15539770, 20165065, 28912727, 40330130, 47739619, 57825454, 95479238, 144563635, 238698095, 289127270, 477396190, 2052803617, 4105607234, 10264018085, 20528036170]

約数ペア:

[(1, 20528036170), (2, 10264018085), (5, 4105607234), (10, 2052803617), (43, 477396190), (71, 289127270), (86, 238698095), (142, 144563635), (215, 95479238), (355, 57825454), (430, 47739619), (509, 40330130), (710, 28912727), (1018, 20165065), (1321, 15539770), (2545, 8066026), (2642, 7769885), (3053, 6723890), (5090, 4033013), (6106, 3361945), (6605, 3107954), (13210, 1553977), (15265, 1344778), (21887, 937910), (30530, 672389), (36139, 568030), (43774, 468955), (56803, 361390), (72278, 284015), (93791, 218870), (109435, 187582), (113606, 180695)]