639969385

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{103}}^1\times {\mathrm{173}}^1\times {\mathrm{653}}^1$

素因数の和:945

約数の個数: 32

約数和(自身を含む): 852104448

約数和(自身を除く): 212135063

約数列:

[1, 5, 11, 55, 103, 173, 515, 653, 865, 1133, 1903, 3265, 5665, 7183, 9515, 17819, 35915, 67259, 89095, 112969, 196009, 336295, 564845, 739849, 980045, 1242659, 3699245, 6213295, 11635807, 58179035, 127993877, 639969385]

約数ペア:

[(1, 639969385), (5, 127993877), (11, 58179035), (55, 11635807), (103, 6213295), (173, 3699245), (515, 1242659), (653, 980045), (865, 739849), (1133, 564845), (1903, 336295), (3265, 196009), (5665, 112969), (7183, 89095), (9515, 67259), (17819, 35915)]