64734280

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{124489}}^1$

素因数の和:124513

約数の個数: 32

約数和(自身を含む): 156857400

約数和(自身を除く): 92123120

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 124489, 248978, 497956, 622445, 995912, 1244890, 1618357, 2489780, 3236714, 4979560, 6473428, 8091785, 12946856, 16183570, 32367140, 64734280]

約数ペア:

[(1, 64734280), (2, 32367140), (4, 16183570), (5, 12946856), (8, 8091785), (10, 6473428), (13, 4979560), (20, 3236714), (26, 2489780), (40, 1618357), (52, 1244890), (65, 995912), (104, 622445), (130, 497956), (260, 248978), (520, 124489)]