3447740

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{211}}^1$

素因数の和:282

約数の個数: 48

約数和(自身を含む): 7835520

約数和(自身を除く): 4387780

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 43, 76, 86, 95, 172, 190, 211, 215, 380, 422, 430, 817, 844, 860, 1055, 1634, 2110, 3268, 4009, 4085, 4220, 8018, 8170, 9073, 16036, 16340, 18146, 20045, 36292, 40090, 45365, 80180, 90730, 172387, 181460, 344774, 689548, 861935, 1723870, 3447740]

約数ペア:

[(1, 3447740), (2, 1723870), (4, 861935), (5, 689548), (10, 344774), (19, 181460), (20, 172387), (38, 90730), (43, 80180), (76, 45365), (86, 40090), (95, 36292), (172, 20045), (190, 18146), (211, 16340), (215, 16036), (380, 9073), (422, 8170), (430, 8018), (817, 4220), (844, 4085), (860, 4009), (1055, 3268), (1634, 2110)]