81120228

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{13229}}^1$

素因数の和:13316

約数の個数: 48

約数和(自身を含む): 219300480

約数和(自身を除く): 138180252

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 73, 84, 146, 219, 292, 438, 511, 876, 1022, 1533, 2044, 3066, 6132, 13229, 26458, 39687, 52916, 79374, 92603, 158748, 185206, 277809, 370412, 555618, 965717, 1111236, 1931434, 2897151, 3862868, 5794302, 6760019, 11588604, 13520038, 20280057, 27040076, 40560114, 81120228]

約数ペア:

[(1, 81120228), (2, 40560114), (3, 27040076), (4, 20280057), (6, 13520038), (7, 11588604), (12, 6760019), (14, 5794302), (21, 3862868), (28, 2897151), (42, 1931434), (73, 1111236), (84, 965717), (146, 555618), (219, 370412), (292, 277809), (438, 185206), (511, 158748), (876, 92603), (1022, 79374), (1533, 52916), (2044, 39687), (3066, 26458), (6132, 13229)]