201880180

素因数分解:

$2^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{227}}^1\times {\mathrm{839}}^1$

素因数の和:1128

約数の個数: 48

約数和(自身を含む): 434367360

約数和(自身を除く): 232487180

約数列:

[1, 2, 4, 5, 10, 20, 53, 106, 212, 227, 265, 454, 530, 839, 908, 1060, 1135, 1678, 2270, 3356, 4195, 4540, 8390, 12031, 16780, 24062, 44467, 48124, 60155, 88934, 120310, 177868, 190453, 222335, 240620, 380906, 444670, 761812, 889340, 952265, 1904530, 3809060, 10094009, 20188018, 40376036, 50470045, 100940090, 201880180]

約数ペア:

[(1, 201880180), (2, 100940090), (4, 50470045), (5, 40376036), (10, 20188018), (20, 10094009), (53, 3809060), (106, 1904530), (212, 952265), (227, 889340), (265, 761812), (454, 444670), (530, 380906), (839, 240620), (908, 222335), (1060, 190453), (1135, 177868), (1678, 120310), (2270, 88934), (3356, 60155), (4195, 48124), (4540, 44467), (8390, 24062), (12031, 16780)]