640342872

素因数分解:

$2^3\times 3^2\times {\mathrm{13}}^1\times {\mathrm{684127}}^1$

素因数の和:684152

約数の個数: 48

約数和(自身を含む): 1867669440

約数和(自身を除く): 1227326568

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 18, 24, 26, 36, 39, 52, 72, 78, 104, 117, 156, 234, 312, 468, 936, 684127, 1368254, 2052381, 2736508, 4104762, 5473016, 6157143, 8209524, 8893651, 12314286, 16419048, 17787302, 24628572, 26680953, 35574604, 49257144, 53361906, 71149208, 80042859, 106723812, 160085718, 213447624, 320171436, 640342872]

約数ペア:

[(1, 640342872), (2, 320171436), (3, 213447624), (4, 160085718), (6, 106723812), (8, 80042859), (9, 71149208), (12, 53361906), (13, 49257144), (18, 35574604), (24, 26680953), (26, 24628572), (36, 17787302), (39, 16419048), (52, 12314286), (72, 8893651), (78, 8209524), (104, 6157143), (117, 5473016), (156, 4104762), (234, 2736508), (312, 2052381), (468, 1368254), (936, 684127)]