30407740

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{1553}}^1$

素因数の和:1662

約数の個数: 48

約数和(自身を含む): 70489440

約数和(自身を除く): 40081700

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 89, 110, 178, 220, 356, 445, 890, 979, 1553, 1780, 1958, 3106, 3916, 4895, 6212, 7765, 9790, 15530, 17083, 19580, 31060, 34166, 68332, 85415, 138217, 170830, 276434, 341660, 552868, 691085, 1382170, 1520387, 2764340, 3040774, 6081548, 7601935, 15203870, 30407740]

約数ペア:

[(1, 30407740), (2, 15203870), (4, 7601935), (5, 6081548), (10, 3040774), (11, 2764340), (20, 1520387), (22, 1382170), (44, 691085), (55, 552868), (89, 341660), (110, 276434), (178, 170830), (220, 138217), (356, 85415), (445, 68332), (890, 34166), (979, 31060), (1553, 19580), (1780, 17083), (1958, 15530), (3106, 9790), (3916, 7765), (4895, 6212)]