19735450

素因数分解:

$2^1\times 5^2\times 7^1\times {\mathrm{113}}^1\times {\mathrm{499}}^1$

素因数の和:631

約数の個数: 48

約数和(自身を含む): 42408000

約数和(自身を除く): 22672550

約数列:

[1, 2, 5, 7, 10, 14, 25, 35, 50, 70, 113, 175, 226, 350, 499, 565, 791, 998, 1130, 1582, 2495, 2825, 3493, 3955, 4990, 5650, 6986, 7910, 12475, 17465, 19775, 24950, 34930, 39550, 56387, 87325, 112774, 174650, 281935, 394709, 563870, 789418, 1409675, 1973545, 2819350, 3947090, 9867725, 19735450]

約数ペア:

[(1, 19735450), (2, 9867725), (5, 3947090), (7, 2819350), (10, 1973545), (14, 1409675), (25, 789418), (35, 563870), (50, 394709), (70, 281935), (113, 174650), (175, 112774), (226, 87325), (350, 56387), (499, 39550), (565, 34930), (791, 24950), (998, 19775), (1130, 17465), (1582, 12475), (2495, 7910), (2825, 6986), (3493, 5650), (3955, 4990)]