4389880

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^2\times {\mathrm{907}}^1$

素因数の和:940

約数の個数: 48

約数和(自身を含む): 10868760

約数和(自身を除く): 6478880

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 121, 220, 242, 440, 484, 605, 907, 968, 1210, 1814, 2420, 3628, 4535, 4840, 7256, 9070, 9977, 18140, 19954, 36280, 39908, 49885, 79816, 99770, 109747, 199540, 219494, 399080, 438988, 548735, 877976, 1097470, 2194940, 4389880]

約数ペア:

[(1, 4389880), (2, 2194940), (4, 1097470), (5, 877976), (8, 548735), (10, 438988), (11, 399080), (20, 219494), (22, 199540), (40, 109747), (44, 99770), (55, 79816), (88, 49885), (110, 39908), (121, 36280), (220, 19954), (242, 18140), (440, 9977), (484, 9070), (605, 7256), (907, 4840), (968, 4535), (1210, 3628), (1814, 2420)]