20804598135

素因数分解:

$3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{73}}^1\times {\mathrm{275357}}^1$

素因数の和:275464

約数の個数: 48

約数和(自身を含む): 38144793024

約数和(自身を除く): 17340194889

約数列:

[1, 3, 5, 9, 15, 23, 45, 69, 73, 115, 207, 219, 345, 365, 657, 1035, 1095, 1679, 3285, 5037, 8395, 15111, 25185, 75555, 275357, 826071, 1376785, 2478213, 4130355, 6333211, 12391065, 18999633, 20101061, 31666055, 56998899, 60303183, 94998165, 100505305, 180909549, 284994495, 301515915, 462324403, 904547745, 1386973209, 2311622015, 4160919627, 6934866045, 20804598135]

約数ペア:

[(1, 20804598135), (3, 6934866045), (5, 4160919627), (9, 2311622015), (15, 1386973209), (23, 904547745), (45, 462324403), (69, 301515915), (73, 284994495), (115, 180909549), (207, 100505305), (219, 94998165), (345, 60303183), (365, 56998899), (657, 31666055), (1035, 20101061), (1095, 18999633), (1679, 12391065), (3285, 6333211), (5037, 4130355), (8395, 2478213), (15111, 1376785), (25185, 826071), (75555, 275357)]