20122440

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{12899}}^1$

素因数の和:12926

約数の個数: 64

約数和(自身を含む): 65016000

約数和(自身を除く): 44893560

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 26, 30, 39, 40, 52, 60, 65, 78, 104, 120, 130, 156, 195, 260, 312, 390, 520, 780, 1560, 12899, 25798, 38697, 51596, 64495, 77394, 103192, 128990, 154788, 167687, 193485, 257980, 309576, 335374, 386970, 503061, 515960, 670748, 773940, 838435, 1006122, 1341496, 1547880, 1676870, 2012244, 2515305, 3353740, 4024488, 5030610, 6707480, 10061220, 20122440]

約数ペア:

[(1, 20122440), (2, 10061220), (3, 6707480), (4, 5030610), (5, 4024488), (6, 3353740), (8, 2515305), (10, 2012244), (12, 1676870), (13, 1547880), (15, 1341496), (20, 1006122), (24, 838435), (26, 773940), (30, 670748), (39, 515960), (40, 503061), (52, 386970), (60, 335374), (65, 309576), (78, 257980), (104, 193485), (120, 167687), (130, 154788), (156, 128990), (195, 103192), (260, 77394), (312, 64495), (390, 51596), (520, 38697), (780, 25798), (1560, 12899)]