20104103312

素因数分解:

$2^4\times {\mathrm{53}}^1\times {\mathrm{107}}^1\times {\mathrm{221567}}^1$

素因数の和:221735

約数の個数: 40

約数和(自身を含む): 40057721856

約数和(自身を除く): 19953618544

約数列:

[1, 2, 4, 8, 16, 53, 106, 107, 212, 214, 424, 428, 848, 856, 1712, 5671, 11342, 22684, 45368, 90736, 221567, 443134, 886268, 1772536, 3545072, 11743051, 23486102, 23707669, 46972204, 47415338, 93944408, 94830676, 187888816, 189661352, 379322704, 1256506457, 2513012914, 5026025828, 10052051656, 20104103312]

約数ペア:

[(1, 20104103312), (2, 10052051656), (4, 5026025828), (8, 2513012914), (16, 1256506457), (53, 379322704), (106, 189661352), (107, 187888816), (212, 94830676), (214, 93944408), (424, 47415338), (428, 46972204), (848, 23707669), (856, 23486102), (1712, 11743051), (5671, 3545072), (11342, 1772536), (22684, 886268), (45368, 443134), (90736, 221567)]