172427920

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{163}}^1\times {\mathrm{1889}}^1$

素因数の和:2072

約数の個数: 80

約数和(自身を含む): 461220480

約数和(自身を除く): 288792560

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 163, 280, 326, 560, 652, 815, 1141, 1304, 1630, 1889, 2282, 2608, 3260, 3778, 4564, 5705, 6520, 7556, 9128, 9445, 11410, 13040, 13223, 15112, 18256, 18890, 22820, 26446, 30224, 37780, 45640, 52892, 66115, 75560, 91280, 105784, 132230, 151120, 211568, 264460, 307907, 528920, 615814, 1057840, 1231628, 1539535, 2155349, 2463256, 3079070, 4310698, 4926512, 6158140, 8621396, 10776745, 12316280, 17242792, 21553490, 24632560, 34485584, 43106980, 86213960, 172427920]

約数ペア:

[(1, 172427920), (2, 86213960), (4, 43106980), (5, 34485584), (7, 24632560), (8, 21553490), (10, 17242792), (14, 12316280), (16, 10776745), (20, 8621396), (28, 6158140), (35, 4926512), (40, 4310698), (56, 3079070), (70, 2463256), (80, 2155349), (112, 1539535), (140, 1231628), (163, 1057840), (280, 615814), (326, 528920), (560, 307907), (652, 264460), (815, 211568), (1141, 151120), (1304, 132230), (1630, 105784), (1889, 91280), (2282, 75560), (2608, 66115), (3260, 52892), (3778, 45640), (4564, 37780), (5705, 30224), (6520, 26446), (7556, 22820), (9128, 18890), (9445, 18256), (11410, 15112), (13040, 13223)]