15455740

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{457}}^1$

素因数の和:574

約数の個数: 48

約数和(自身を含む): 34624800

約数和(自身を除く): 19169060

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 89, 95, 178, 190, 356, 380, 445, 457, 890, 914, 1691, 1780, 1828, 2285, 3382, 4570, 6764, 8455, 8683, 9140, 16910, 17366, 33820, 34732, 40673, 43415, 81346, 86830, 162692, 173660, 203365, 406730, 772787, 813460, 1545574, 3091148, 3863935, 7727870, 15455740]

約数ペア:

[(1, 15455740), (2, 7727870), (4, 3863935), (5, 3091148), (10, 1545574), (19, 813460), (20, 772787), (38, 406730), (76, 203365), (89, 173660), (95, 162692), (178, 86830), (190, 81346), (356, 43415), (380, 40673), (445, 34732), (457, 33820), (890, 17366), (914, 16910), (1691, 9140), (1780, 8683), (1828, 8455), (2285, 6764), (3382, 4570)]