78865960

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{2531}}^1$

素因数の和:2602

約数の個数: 64

約数和(自身を含む): 191419200

約数和(自身を除く): 112553240

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 41, 76, 82, 95, 152, 164, 190, 205, 328, 380, 410, 760, 779, 820, 1558, 1640, 2531, 3116, 3895, 5062, 6232, 7790, 10124, 12655, 15580, 20248, 25310, 31160, 48089, 50620, 96178, 101240, 103771, 192356, 207542, 240445, 384712, 415084, 480890, 518855, 830168, 961780, 1037710, 1923560, 1971649, 2075420, 3943298, 4150840, 7886596, 9858245, 15773192, 19716490, 39432980, 78865960]

約数ペア:

[(1, 78865960), (2, 39432980), (4, 19716490), (5, 15773192), (8, 9858245), (10, 7886596), (19, 4150840), (20, 3943298), (38, 2075420), (40, 1971649), (41, 1923560), (76, 1037710), (82, 961780), (95, 830168), (152, 518855), (164, 480890), (190, 415084), (205, 384712), (328, 240445), (380, 207542), (410, 192356), (760, 103771), (779, 101240), (820, 96178), (1558, 50620), (1640, 48089), (2531, 31160), (3116, 25310), (3895, 20248), (5062, 15580), (6232, 12655), (7790, 10124)]