8731540

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{421}}^1$

素因数の和:508

約数の個数: 48

約数和(自身を含む): 19779984

約数和(自身を除く): 11048444

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 61, 68, 85, 122, 170, 244, 305, 340, 421, 610, 842, 1037, 1220, 1684, 2074, 2105, 4148, 4210, 5185, 7157, 8420, 10370, 14314, 20740, 25681, 28628, 35785, 51362, 71570, 102724, 128405, 143140, 256810, 436577, 513620, 873154, 1746308, 2182885, 4365770, 8731540]

約数ペア:

[(1, 8731540), (2, 4365770), (4, 2182885), (5, 1746308), (10, 873154), (17, 513620), (20, 436577), (34, 256810), (61, 143140), (68, 128405), (85, 102724), (122, 71570), (170, 51362), (244, 35785), (305, 28628), (340, 25681), (421, 20740), (610, 14314), (842, 10370), (1037, 8420), (1220, 7157), (1684, 5185), (2074, 4210), (2105, 4148)]