247212290

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{61343}}^1$

素因数の和:61394

約数の個数: 32

約数和(自身を含む): 494678016

約数和(自身を除く): 247465726

約数列:

[1, 2, 5, 10, 13, 26, 31, 62, 65, 130, 155, 310, 403, 806, 2015, 4030, 61343, 122686, 306715, 613430, 797459, 1594918, 1901633, 3803266, 3987295, 7974590, 9508165, 19016330, 24721229, 49442458, 123606145, 247212290]

約数ペア:

[(1, 247212290), (2, 123606145), (5, 49442458), (10, 24721229), (13, 19016330), (26, 9508165), (31, 7974590), (62, 3987295), (65, 3803266), (130, 1901633), (155, 1594918), (310, 797459), (403, 613430), (806, 306715), (2015, 122686), (4030, 61343)]