161885920

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{144541}}^1$

素因数の和:144563

約数の個数: 48

約数和(自身を含む): 437095008

約数和(自身を除く): 275209088

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 70, 80, 112, 140, 160, 224, 280, 560, 1120, 144541, 289082, 578164, 722705, 1011787, 1156328, 1445410, 2023574, 2312656, 2890820, 4047148, 4625312, 5058935, 5781640, 8094296, 10117870, 11563280, 16188592, 20235740, 23126560, 32377184, 40471480, 80942960, 161885920]

約数ペア:

[(1, 161885920), (2, 80942960), (4, 40471480), (5, 32377184), (7, 23126560), (8, 20235740), (10, 16188592), (14, 11563280), (16, 10117870), (20, 8094296), (28, 5781640), (32, 5058935), (35, 4625312), (40, 4047148), (56, 2890820), (70, 2312656), (80, 2023574), (112, 1445410), (140, 1156328), (160, 1011787), (224, 722705), (280, 578164), (560, 289082), (1120, 144541)]