28004392

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{4019}}^1$

素因数の和:4105

約数の個数: 32

約数和(自身を含む): 57405600

約数和(自身を除く): 29401208

約数列:

[1, 2, 4, 8, 13, 26, 52, 67, 104, 134, 268, 536, 871, 1742, 3484, 4019, 6968, 8038, 16076, 32152, 52247, 104494, 208988, 269273, 417976, 538546, 1077092, 2154184, 3500549, 7001098, 14002196, 28004392]

約数ペア:

[(1, 28004392), (2, 14002196), (4, 7001098), (8, 3500549), (13, 2154184), (26, 1077092), (52, 538546), (67, 417976), (104, 269273), (134, 208988), (268, 104494), (536, 52247), (871, 32152), (1742, 16076), (3484, 8038), (4019, 6968)]