30578620

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{89}}^1\times {\mathrm{419}}^1$

素因数の和:558

約数の個数: 48

約数和(自身を含む): 66679200

約数和(自身を除く): 36100580

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 89, 164, 178, 205, 356, 410, 419, 445, 820, 838, 890, 1676, 1780, 2095, 3649, 4190, 7298, 8380, 14596, 17179, 18245, 34358, 36490, 37291, 68716, 72980, 74582, 85895, 149164, 171790, 186455, 343580, 372910, 745820, 1528931, 3057862, 6115724, 7644655, 15289310, 30578620]

約数ペア:

[(1, 30578620), (2, 15289310), (4, 7644655), (5, 6115724), (10, 3057862), (20, 1528931), (41, 745820), (82, 372910), (89, 343580), (164, 186455), (178, 171790), (205, 149164), (356, 85895), (410, 74582), (419, 72980), (445, 68716), (820, 37291), (838, 36490), (890, 34358), (1676, 18245), (1780, 17179), (2095, 14596), (3649, 8380), (4190, 7298)]