21697432880

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{6615071}}^1$

素因数の和:6615125

約数の個数: 40

約数和(自身を含む): 51676942464

約数和(自身を除く): 29979509584

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 80, 82, 164, 205, 328, 410, 656, 820, 1640, 3280, 6615071, 13230142, 26460284, 33075355, 52920568, 66150710, 105841136, 132301420, 264602840, 271217911, 529205680, 542435822, 1084871644, 1356089555, 2169743288, 2712179110, 4339486576, 5424358220, 10848716440, 21697432880]

約数ペア:

[(1, 21697432880), (2, 10848716440), (4, 5424358220), (5, 4339486576), (8, 2712179110), (10, 2169743288), (16, 1356089555), (20, 1084871644), (40, 542435822), (41, 529205680), (80, 271217911), (82, 264602840), (164, 132301420), (205, 105841136), (328, 66150710), (410, 52920568), (656, 33075355), (820, 26460284), (1640, 13230142), (3280, 6615071)]