128617636

素因数分解:

$2^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{2087}}^1$

素因数の和:2200

約数の個数: 48

約数和(自身を含む): 269402112

約数和(自身を除く): 140784476

約数列:

[1, 2, 4, 7, 14, 28, 31, 62, 71, 124, 142, 217, 284, 434, 497, 868, 994, 1988, 2087, 2201, 4174, 4402, 8348, 8804, 14609, 15407, 29218, 30814, 58436, 61628, 64697, 129394, 148177, 258788, 296354, 452879, 592708, 905758, 1037239, 1811516, 2074478, 4148956, 4593487, 9186974, 18373948, 32154409, 64308818, 128617636]

約数ペア:

[(1, 128617636), (2, 64308818), (4, 32154409), (7, 18373948), (14, 9186974), (28, 4593487), (31, 4148956), (62, 2074478), (71, 1811516), (124, 1037239), (142, 905758), (217, 592708), (284, 452879), (434, 296354), (497, 258788), (868, 148177), (994, 129394), (1988, 64697), (2087, 61628), (2201, 58436), (4174, 30814), (4402, 29218), (8348, 15407), (8804, 14609)]