20770620

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{859}}^1$

素因数の和:915

約数の個数: 96

約数和(自身を含む): 64727040

約数和(自身を除く): 43956420

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 31, 39, 52, 60, 62, 65, 78, 93, 124, 130, 155, 156, 186, 195, 260, 310, 372, 390, 403, 465, 620, 780, 806, 859, 930, 1209, 1612, 1718, 1860, 2015, 2418, 2577, 3436, 4030, 4295, 4836, 5154, 6045, 8060, 8590, 10308, 11167, 12090, 12885, 17180, 22334, 24180, 25770, 26629, 33501, 44668, 51540, 53258, 55835, 67002, 79887, 106516, 111670, 133145, 134004, 159774, 167505, 223340, 266290, 319548, 335010, 346177, 399435, 532580, 670020, 692354, 798870, 1038531, 1384708, 1597740, 1730885, 2077062, 3461770, 4154124, 5192655, 6923540, 10385310, 20770620]

約数ペア:

[(1, 20770620), (2, 10385310), (3, 6923540), (4, 5192655), (5, 4154124), (6, 3461770), (10, 2077062), (12, 1730885), (13, 1597740), (15, 1384708), (20, 1038531), (26, 798870), (30, 692354), (31, 670020), (39, 532580), (52, 399435), (60, 346177), (62, 335010), (65, 319548), (78, 266290), (93, 223340), (124, 167505), (130, 159774), (155, 134004), (156, 133145), (186, 111670), (195, 106516), (260, 79887), (310, 67002), (372, 55835), (390, 53258), (403, 51540), (465, 44668), (620, 33501), (780, 26629), (806, 25770), (859, 24180), (930, 22334), (1209, 17180), (1612, 12885), (1718, 12090), (1860, 11167), (2015, 10308), (2418, 8590), (2577, 8060), (3436, 6045), (4030, 5154), (4295, 4836)]