206589890

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{51263}}^1$

素因数の和:51314

約数の個数: 32

約数和(自身を含む): 413392896

約数和(自身を除く): 206803006

約数列:

[1, 2, 5, 10, 13, 26, 31, 62, 65, 130, 155, 310, 403, 806, 2015, 4030, 51263, 102526, 256315, 512630, 666419, 1332838, 1589153, 3178306, 3332095, 6664190, 7945765, 15891530, 20658989, 41317978, 103294945, 206589890]

約数ペア:

[(1, 206589890), (2, 103294945), (5, 41317978), (10, 20658989), (13, 15891530), (26, 7945765), (31, 6664190), (62, 3332095), (65, 3178306), (130, 1589153), (155, 1332838), (310, 666419), (403, 512630), (806, 256315), (2015, 102526), (4030, 51263)]