20759336

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{137}}^1$

素因数の和:234

約数の個数: 64

約数和(自身を含む): 44513280

約数和(自身を除く): 23753944

約数列:

[1, 2, 4, 8, 13, 26, 31, 47, 52, 62, 94, 104, 124, 137, 188, 248, 274, 376, 403, 548, 611, 806, 1096, 1222, 1457, 1612, 1781, 2444, 2914, 3224, 3562, 4247, 4888, 5828, 6439, 7124, 8494, 11656, 12878, 14248, 16988, 18941, 25756, 33976, 37882, 51512, 55211, 75764, 83707, 110422, 151528, 167414, 199609, 220844, 334828, 399218, 441688, 669656, 798436, 1596872, 2594917, 5189834, 10379668, 20759336]

約数ペア:

[(1, 20759336), (2, 10379668), (4, 5189834), (8, 2594917), (13, 1596872), (26, 798436), (31, 669656), (47, 441688), (52, 399218), (62, 334828), (94, 220844), (104, 199609), (124, 167414), (137, 151528), (188, 110422), (248, 83707), (274, 75764), (376, 55211), (403, 51512), (548, 37882), (611, 33976), (806, 25756), (1096, 18941), (1222, 16988), (1457, 14248), (1612, 12878), (1781, 11656), (2444, 8494), (2914, 7124), (3224, 6439), (3562, 5828), (4247, 4888)]