19800228

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{3229}}^1$

素因数の和:3316

約数の個数: 48

約数和(自身を含む): 53540480

約数和(自身を除く): 33740252

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, 3229, 6132, 6458, 9687, 12916, 19374, 22603, 38748, 45206, 67809, 90412, 135618, 235717, 271236, 471434, 707151, 942868, 1414302, 1650019, 2828604, 3300038, 4950057, 6600076, 9900114, 19800228]

約数ペア:

[(1, 19800228), (2, 9900114), (3, 6600076), (4, 4950057), (6, 3300038), (7, 2828604), (12, 1650019), (14, 1414302), (21, 942868), (28, 707151), (42, 471434), (73, 271236), (84, 235717), (146, 135618), (219, 90412), (292, 67809), (438, 45206), (511, 38748), (876, 22603), (1022, 19374), (1533, 12916), (2044, 9687), (3066, 6458), (3229, 6132)]