717340

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{89}}^1$

素因数の和:142

約数の個数: 48

約数和(自身を含む): 1693440

約数和(自身を除く): 976100

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 31, 52, 62, 65, 89, 124, 130, 155, 178, 260, 310, 356, 403, 445, 620, 806, 890, 1157, 1612, 1780, 2015, 2314, 2759, 4030, 4628, 5518, 5785, 8060, 11036, 11570, 13795, 23140, 27590, 35867, 55180, 71734, 143468, 179335, 358670, 717340]

約数ペア:

[(1, 717340), (2, 358670), (4, 179335), (5, 143468), (10, 71734), (13, 55180), (20, 35867), (26, 27590), (31, 23140), (52, 13795), (62, 11570), (65, 11036), (89, 8060), (124, 5785), (130, 5518), (155, 4628), (178, 4030), (260, 2759), (310, 2314), (356, 2015), (403, 1780), (445, 1612), (620, 1157), (806, 890)]