1655840

素因数分解:

$2^5\times 5^1\times {\mathrm{79}}^1\times {\mathrm{131}}^1$

素因数の和:225

約数の個数: 48

約数和(自身を含む): 3991680

約数和(自身を除く): 2335840

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 79, 80, 131, 158, 160, 262, 316, 395, 524, 632, 655, 790, 1048, 1264, 1310, 1580, 2096, 2528, 2620, 3160, 4192, 5240, 6320, 10349, 10480, 12640, 20698, 20960, 41396, 51745, 82792, 103490, 165584, 206980, 331168, 413960, 827920, 1655840]

約数ペア:

[(1, 1655840), (2, 827920), (4, 413960), (5, 331168), (8, 206980), (10, 165584), (16, 103490), (20, 82792), (32, 51745), (40, 41396), (79, 20960), (80, 20698), (131, 12640), (158, 10480), (160, 10349), (262, 6320), (316, 5240), (395, 4192), (524, 3160), (632, 2620), (655, 2528), (790, 2096), (1048, 1580), (1264, 1310)]