9758780

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{421}}^1$

素因数の和:510

約数の個数: 48

約数和(自身を含む): 21977760

約数和(自身を除く): 12218980

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 61, 76, 95, 122, 190, 244, 305, 380, 421, 610, 842, 1159, 1220, 1684, 2105, 2318, 4210, 4636, 5795, 7999, 8420, 11590, 15998, 23180, 25681, 31996, 39995, 51362, 79990, 102724, 128405, 159980, 256810, 487939, 513620, 975878, 1951756, 2439695, 4879390, 9758780]

約数ペア:

[(1, 9758780), (2, 4879390), (4, 2439695), (5, 1951756), (10, 975878), (19, 513620), (20, 487939), (38, 256810), (61, 159980), (76, 128405), (95, 102724), (122, 79990), (190, 51362), (244, 39995), (305, 31996), (380, 25681), (421, 23180), (610, 15998), (842, 11590), (1159, 8420), (1220, 7999), (1684, 5795), (2105, 4636), (2318, 4210)]