28071990

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{131}}^1\times {\mathrm{2381}}^1$

素因数の和:2525

約数の個数: 48

約数和(自身を含む): 73575216

約数和(自身を除く): 45503226

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 131, 262, 393, 655, 786, 1179, 1310, 1965, 2358, 2381, 3930, 4762, 5895, 7143, 11790, 11905, 14286, 21429, 23810, 35715, 42858, 71430, 107145, 214290, 311911, 623822, 935733, 1559555, 1871466, 2807199, 3119110, 4678665, 5614398, 9357330, 14035995, 28071990]

約数ペア:

[(1, 28071990), (2, 14035995), (3, 9357330), (5, 5614398), (6, 4678665), (9, 3119110), (10, 2807199), (15, 1871466), (18, 1559555), (30, 935733), (45, 623822), (90, 311911), (131, 214290), (262, 107145), (393, 71430), (655, 42858), (786, 35715), (1179, 23810), (1310, 21429), (1965, 14286), (2358, 11905), (2381, 11790), (3930, 7143), (4762, 5895)]