648551488

素因数分解:

$2^6\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{10979}}^1$

素因数の和:11075

約数の個数: 56

約数和(自身を含む): 1405615680

約数和(自身を除く): 757064192

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 64, 71, 104, 142, 208, 284, 416, 568, 832, 923, 1136, 1846, 2272, 3692, 4544, 7384, 10979, 14768, 21958, 29536, 43916, 59072, 87832, 142727, 175664, 285454, 351328, 570908, 702656, 779509, 1141816, 1559018, 2283632, 3118036, 4567264, 6236072, 9134528, 10133617, 12472144, 20267234, 24944288, 40534468, 49888576, 81068936, 162137872, 324275744, 648551488]

約数ペア:

[(1, 648551488), (2, 324275744), (4, 162137872), (8, 81068936), (13, 49888576), (16, 40534468), (26, 24944288), (32, 20267234), (52, 12472144), (64, 10133617), (71, 9134528), (104, 6236072), (142, 4567264), (208, 3118036), (284, 2283632), (416, 1559018), (568, 1141816), (832, 779509), (923, 702656), (1136, 570908), (1846, 351328), (2272, 285454), (3692, 175664), (4544, 142727), (7384, 87832), (10979, 59072), (14768, 43916), (21958, 29536)]