2640950

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{239}}^1$

素因数の和:281

約数の個数: 48

約数和(自身を含む): 5624640

約数和(自身を除く): 2983690

約数列:

[1, 2, 5, 10, 13, 17, 25, 26, 34, 50, 65, 85, 130, 170, 221, 239, 325, 425, 442, 478, 650, 850, 1105, 1195, 2210, 2390, 3107, 4063, 5525, 5975, 6214, 8126, 11050, 11950, 15535, 20315, 31070, 40630, 52819, 77675, 101575, 105638, 155350, 203150, 264095, 528190, 1320475, 2640950]

約数ペア:

[(1, 2640950), (2, 1320475), (5, 528190), (10, 264095), (13, 203150), (17, 155350), (25, 105638), (26, 101575), (34, 77675), (50, 52819), (65, 40630), (85, 31070), (130, 20315), (170, 15535), (221, 11950), (239, 11050), (325, 8126), (425, 6214), (442, 5975), (478, 5525), (650, 4063), (850, 3107), (1105, 2390), (1195, 2210)]