257283420

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{991}}^1\times {\mathrm{4327}}^1$

素因数の和:5330

約数の個数: 48

約数和(自身を含む): 721287168

約数和(自身を除く): 464003748

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 991, 1982, 2973, 3964, 4327, 4955, 5946, 8654, 9910, 11892, 12981, 14865, 17308, 19820, 21635, 25962, 29730, 43270, 51924, 59460, 64905, 86540, 129810, 259620, 4288057, 8576114, 12864171, 17152228, 21440285, 25728342, 42880570, 51456684, 64320855, 85761140, 128641710, 257283420]

約数ペア:

[(1, 257283420), (2, 128641710), (3, 85761140), (4, 64320855), (5, 51456684), (6, 42880570), (10, 25728342), (12, 21440285), (15, 17152228), (20, 12864171), (30, 8576114), (60, 4288057), (991, 259620), (1982, 129810), (2973, 86540), (3964, 64905), (4327, 59460), (4955, 51924), (5946, 43270), (8654, 29730), (9910, 25962), (11892, 21635), (12981, 19820), (14865, 17308)]