40645384

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{390821}}^1$

素因数の和:390840

約数の個数: 16

約数和(自身を含む): 82072620

約数和(自身を除く): 41427236

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 390821, 781642, 1563284, 3126568, 5080673, 10161346, 20322692, 40645384]

約数ペア:

[(1, 40645384), (2, 20322692), (4, 10161346), (8, 5080673), (13, 3126568), (26, 1563284), (52, 781642), (104, 390821)]