389616140

素因数分解:

$2^2\times 5^1\times {\mathrm{109}}^1\times {\mathrm{313}}^1\times {\mathrm{571}}^1$

素因数の和:1002

約数の個数: 48

約数和(自身を含む): 829788960

約数和(自身を除く): 440172820

約数列:

[1, 2, 4, 5, 10, 20, 109, 218, 313, 436, 545, 571, 626, 1090, 1142, 1252, 1565, 2180, 2284, 2855, 3130, 5710, 6260, 11420, 34117, 62239, 68234, 124478, 136468, 170585, 178723, 248956, 311195, 341170, 357446, 622390, 682340, 714892, 893615, 1244780, 1787230, 3574460, 19480807, 38961614, 77923228, 97404035, 194808070, 389616140]

約数ペア:

[(1, 389616140), (2, 194808070), (4, 97404035), (5, 77923228), (10, 38961614), (20, 19480807), (109, 3574460), (218, 1787230), (313, 1244780), (436, 893615), (545, 714892), (571, 682340), (626, 622390), (1090, 357446), (1142, 341170), (1252, 311195), (1565, 248956), (2180, 178723), (2284, 170585), (2855, 136468), (3130, 124478), (5710, 68234), (6260, 62239), (11420, 34117)]