20203460

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{673}}^1$

素因数の和:780

約数の個数: 48

約数和(自身を含む): 45292800

約数和(自身を除く): 25089340

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 79, 95, 158, 190, 316, 380, 395, 673, 790, 1346, 1501, 1580, 2692, 3002, 3365, 6004, 6730, 7505, 12787, 13460, 15010, 25574, 30020, 51148, 53167, 63935, 106334, 127870, 212668, 255740, 265835, 531670, 1010173, 1063340, 2020346, 4040692, 5050865, 10101730, 20203460]

約数ペア:

[(1, 20203460), (2, 10101730), (4, 5050865), (5, 4040692), (10, 2020346), (19, 1063340), (20, 1010173), (38, 531670), (76, 265835), (79, 255740), (95, 212668), (158, 127870), (190, 106334), (316, 63935), (380, 53167), (395, 51148), (673, 30020), (790, 25574), (1346, 15010), (1501, 13460), (1580, 12787), (2692, 7505), (3002, 6730), (3365, 6004)]