1998155640

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1280869}}^1$

素因数の和:1280896

約数の個数: 64

約数和(自身を含む): 6455584800

約数和(自身を除く): 4457429160

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, 1280869, 2561738, 3842607, 5123476, 6404345, 7685214, 10246952, 12808690, 15370428, 16651297, 19213035, 25617380, 30740856, 33302594, 38426070, 49953891, 51234760, 66605188, 76852140, 83256485, 99907782, 133210376, 153704280, 166512970, 199815564, 249769455, 333025940, 399631128, 499538910, 666051880, 999077820, 1998155640]

約数ペア:

[(1, 1998155640), (2, 999077820), (3, 666051880), (4, 499538910), (5, 399631128), (6, 333025940), (8, 249769455), (10, 199815564), (12, 166512970), (13, 153704280), (15, 133210376), (20, 99907782), (24, 83256485), (26, 76852140), (30, 66605188), (39, 51234760), (40, 49953891), (52, 38426070), (60, 33302594), (65, 30740856), (78, 25617380), (104, 19213035), (120, 16651297), (130, 15370428), (156, 12808690), (195, 10246952), (260, 7685214), (312, 6404345), (390, 5123476), (520, 3842607), (780, 2561738), (1560, 1280869)]