20181390

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{23197}}^1$

素因数の和:23236

約数の個数: 32

約数和(自身を含む): 50107680

約数和(自身を除く): 29926290

約数列:

[1, 2, 3, 5, 6, 10, 15, 29, 30, 58, 87, 145, 174, 290, 435, 870, 23197, 46394, 69591, 115985, 139182, 231970, 347955, 672713, 695910, 1345426, 2018139, 3363565, 4036278, 6727130, 10090695, 20181390]

約数ペア:

[(1, 20181390), (2, 10090695), (3, 6727130), (5, 4036278), (6, 3363565), (10, 2018139), (15, 1345426), (29, 695910), (30, 672713), (58, 347955), (87, 231970), (145, 139182), (174, 115985), (290, 69591), (435, 46394), (870, 23197)]