28049784

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{103}}^1\times {\mathrm{1621}}^1$

素因数の和:1740

約数の個数: 64

約数和(自身を含む): 80970240

約数和(自身を除く): 52920456

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 42, 56, 84, 103, 168, 206, 309, 412, 618, 721, 824, 1236, 1442, 1621, 2163, 2472, 2884, 3242, 4326, 4863, 5768, 6484, 8652, 9726, 11347, 12968, 17304, 19452, 22694, 34041, 38904, 45388, 68082, 90776, 136164, 166963, 272328, 333926, 500889, 667852, 1001778, 1168741, 1335704, 2003556, 2337482, 3506223, 4007112, 4674964, 7012446, 9349928, 14024892, 28049784]

約数ペア:

[(1, 28049784), (2, 14024892), (3, 9349928), (4, 7012446), (6, 4674964), (7, 4007112), (8, 3506223), (12, 2337482), (14, 2003556), (21, 1335704), (24, 1168741), (28, 1001778), (42, 667852), (56, 500889), (84, 333926), (103, 272328), (168, 166963), (206, 136164), (309, 90776), (412, 68082), (618, 45388), (721, 38904), (824, 34041), (1236, 22694), (1442, 19452), (1621, 17304), (2163, 12968), (2472, 11347), (2884, 9726), (3242, 8652), (4326, 6484), (4863, 5768)]