64656280

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{124339}}^1$

素因数の和:124363

約数の個数: 32

約数和(自身を含む): 156668400

約数和(自身を除く): 92012120

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 124339, 248678, 497356, 621695, 994712, 1243390, 1616407, 2486780, 3232814, 4973560, 6465628, 8082035, 12931256, 16164070, 32328140, 64656280]

約数ペア:

[(1, 64656280), (2, 32328140), (4, 16164070), (5, 12931256), (8, 8082035), (10, 6465628), (13, 4973560), (20, 3232814), (26, 2486780), (40, 1616407), (52, 1243390), (65, 994712), (104, 621695), (130, 497356), (260, 248678), (520, 124339)]