641511364

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{12251}}^1$

素因数の和:12340

約数の個数: 48

約数和(自身を含む): 1296751680

約数和(自身を除く): 655240316

約数列:

[1, 2, 4, 13, 19, 26, 38, 52, 53, 76, 106, 212, 247, 494, 689, 988, 1007, 1378, 2014, 2756, 4028, 12251, 13091, 24502, 26182, 49004, 52364, 159263, 232769, 318526, 465538, 637052, 649303, 931076, 1298606, 2597212, 3025997, 6051994, 8440939, 12103988, 12336757, 16881878, 24673514, 33763756, 49347028, 160377841, 320755682, 641511364]

約数ペア:

[(1, 641511364), (2, 320755682), (4, 160377841), (13, 49347028), (19, 33763756), (26, 24673514), (38, 16881878), (52, 12336757), (53, 12103988), (76, 8440939), (106, 6051994), (212, 3025997), (247, 2597212), (494, 1298606), (689, 931076), (988, 649303), (1007, 637052), (1378, 465538), (2014, 318526), (2756, 232769), (4028, 159263), (12251, 52364), (13091, 49004), (24502, 26182)]