20735156

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{677}}^1$

素因数の和:744

約数の個数: 48

約数和(自身を含む): 42524160

約数和(自身を除く): 21789004

約数列:

[1, 2, 4, 13, 19, 26, 31, 38, 52, 62, 76, 124, 247, 403, 494, 589, 677, 806, 988, 1178, 1354, 1612, 2356, 2708, 7657, 8801, 12863, 15314, 17602, 20987, 25726, 30628, 35204, 41974, 51452, 83948, 167219, 272831, 334438, 398753, 545662, 668876, 797506, 1091324, 1595012, 5183789, 10367578, 20735156]

約数ペア:

[(1, 20735156), (2, 10367578), (4, 5183789), (13, 1595012), (19, 1091324), (26, 797506), (31, 668876), (38, 545662), (52, 398753), (62, 334438), (76, 272831), (124, 167219), (247, 83948), (403, 51452), (494, 41974), (589, 35204), (677, 30628), (806, 25726), (988, 20987), (1178, 17602), (1354, 15314), (1612, 12863), (2356, 8801), (2708, 7657)]