64259780

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{2777}}^1$

素因数の和:2888

約数の個数: 48

約数和(自身を含む): 147011760

約数和(自身を除く): 82751980

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 89, 130, 178, 260, 356, 445, 890, 1157, 1780, 2314, 2777, 4628, 5554, 5785, 11108, 11570, 13885, 23140, 27770, 36101, 55540, 72202, 144404, 180505, 247153, 361010, 494306, 722020, 988612, 1235765, 2471530, 3212989, 4943060, 6425978, 12851956, 16064945, 32129890, 64259780]

約数ペア:

[(1, 64259780), (2, 32129890), (4, 16064945), (5, 12851956), (10, 6425978), (13, 4943060), (20, 3212989), (26, 2471530), (52, 1235765), (65, 988612), (89, 722020), (130, 494306), (178, 361010), (260, 247153), (356, 180505), (445, 144404), (890, 72202), (1157, 55540), (1780, 36101), (2314, 27770), (2777, 23140), (4628, 13885), (5554, 11570), (5785, 11108)]