31089320

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^2\times {\mathrm{2153}}^1$

素因数の和:2202

約数の個数: 48

約数和(自身を含む): 73860660

約数和(自身を除く): 42771340

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 361, 380, 722, 760, 1444, 1805, 2153, 2888, 3610, 4306, 7220, 8612, 10765, 14440, 17224, 21530, 40907, 43060, 81814, 86120, 163628, 204535, 327256, 409070, 777233, 818140, 1554466, 1636280, 3108932, 3886165, 6217864, 7772330, 15544660, 31089320]

約数ペア:

[(1, 31089320), (2, 15544660), (4, 7772330), (5, 6217864), (8, 3886165), (10, 3108932), (19, 1636280), (20, 1554466), (38, 818140), (40, 777233), (76, 409070), (95, 327256), (152, 204535), (190, 163628), (361, 86120), (380, 81814), (722, 43060), (760, 40907), (1444, 21530), (1805, 17224), (2153, 14440), (2888, 10765), (3610, 8612), (4306, 7220)]