1990457964

素因数分解:

$2^2\times 3^2\times {\mathrm{11}}^1\times {\mathrm{239}}^1\times {\mathrm{21031}}^1$

素因数の和:21291

約数の個数: 72

約数和(自身を含む): 5512066560

約数和(自身を除く): 3521608596

約数列:

[1, 2, 3, 4, 6, 9, 11, 12, 18, 22, 33, 36, 44, 66, 99, 132, 198, 239, 396, 478, 717, 956, 1434, 2151, 2629, 2868, 4302, 5258, 7887, 8604, 10516, 15774, 21031, 23661, 31548, 42062, 47322, 63093, 84124, 94644, 126186, 189279, 231341, 252372, 378558, 462682, 694023, 757116, 925364, 1388046, 2082069, 2776092, 4164138, 5026409, 8328276, 10052818, 15079227, 20105636, 30158454, 45237681, 55290499, 60316908, 90475362, 110580998, 165871497, 180950724, 221161996, 331742994, 497614491, 663485988, 995228982, 1990457964]

約数ペア:

[(1, 1990457964), (2, 995228982), (3, 663485988), (4, 497614491), (6, 331742994), (9, 221161996), (11, 180950724), (12, 165871497), (18, 110580998), (22, 90475362), (33, 60316908), (36, 55290499), (44, 45237681), (66, 30158454), (99, 20105636), (132, 15079227), (198, 10052818), (239, 8328276), (396, 5026409), (478, 4164138), (717, 2776092), (956, 2082069), (1434, 1388046), (2151, 925364), (2629, 757116), (2868, 694023), (4302, 462682), (5258, 378558), (7887, 252372), (8604, 231341), (10516, 189279), (15774, 126186), (21031, 94644), (23661, 84124), (31548, 63093), (42062, 47322)]