12391840

素因数分解:

$2^5\times 5^1\times {\mathrm{41}}^1\times {\mathrm{1889}}^1$

素因数の和:1945

約数の個数: 48

約数和(自身を含む): 30005640

約数和(自身を除く): 17613800

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 41, 80, 82, 160, 164, 205, 328, 410, 656, 820, 1312, 1640, 1889, 3280, 3778, 6560, 7556, 9445, 15112, 18890, 30224, 37780, 60448, 75560, 77449, 151120, 154898, 302240, 309796, 387245, 619592, 774490, 1239184, 1548980, 2478368, 3097960, 6195920, 12391840]

約数ペア:

[(1, 12391840), (2, 6195920), (4, 3097960), (5, 2478368), (8, 1548980), (10, 1239184), (16, 774490), (20, 619592), (32, 387245), (40, 309796), (41, 302240), (80, 154898), (82, 151120), (160, 77449), (164, 75560), (205, 60448), (328, 37780), (410, 30224), (656, 18890), (820, 15112), (1312, 9445), (1640, 7556), (1889, 6560), (3280, 3778)]