11019980

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{89}}^1\times {\mathrm{151}}^1$

素因数の和:290

約数の個数: 48

約数和(自身を含む): 24131520

約数和(自身を除く): 13111540

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 89, 151, 164, 178, 205, 302, 356, 410, 445, 604, 755, 820, 890, 1510, 1780, 3020, 3649, 6191, 7298, 12382, 13439, 14596, 18245, 24764, 26878, 30955, 36490, 53756, 61910, 67195, 72980, 123820, 134390, 268780, 550999, 1101998, 2203996, 2754995, 5509990, 11019980]

約数ペア:

[(1, 11019980), (2, 5509990), (4, 2754995), (5, 2203996), (10, 1101998), (20, 550999), (41, 268780), (82, 134390), (89, 123820), (151, 72980), (164, 67195), (178, 61910), (205, 53756), (302, 36490), (356, 30955), (410, 26878), (445, 24764), (604, 18245), (755, 14596), (820, 13439), (890, 12382), (1510, 7298), (1780, 6191), (3020, 3649)]