20650219940

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{1239509}}^1$

素因数の和:1239549

約数の個数: 72

約数和(自身を含む): 53412964920

約数和(自身を除く): 32762744980

約数列:

[1, 2, 4, 5, 7, 10, 14, 17, 20, 28, 34, 35, 49, 68, 70, 85, 98, 119, 140, 170, 196, 238, 245, 340, 476, 490, 595, 833, 980, 1190, 1666, 2380, 3332, 4165, 8330, 16660, 1239509, 2479018, 4958036, 6197545, 8676563, 12395090, 17353126, 21071653, 24790180, 34706252, 42143306, 43382815, 60735941, 84286612, 86765630, 105358265, 121471882, 147501571, 173531260, 210716530, 242943764, 295003142, 303679705, 421433060, 590006284, 607359410, 737507855, 1032510997, 1214718820, 1475015710, 2065021994, 2950031420, 4130043988, 5162554985, 10325109970, 20650219940]

約数ペア:

[(1, 20650219940), (2, 10325109970), (4, 5162554985), (5, 4130043988), (7, 2950031420), (10, 2065021994), (14, 1475015710), (17, 1214718820), (20, 1032510997), (28, 737507855), (34, 607359410), (35, 590006284), (49, 421433060), (68, 303679705), (70, 295003142), (85, 242943764), (98, 210716530), (119, 173531260), (140, 147501571), (170, 121471882), (196, 105358265), (238, 86765630), (245, 84286612), (340, 60735941), (476, 43382815), (490, 42143306), (595, 34706252), (833, 24790180), (980, 21071653), (1190, 17353126), (1666, 12395090), (2380, 8676563), (3332, 6197545), (4165, 4958036), (8330, 2479018), (16660, 1239509)]