27657890

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{6863}}^1$

素因数の和:6914

約数の個数: 32

約数和(自身を含む): 55351296

約数和(自身を除く): 27693406

約数列:

[1, 2, 5, 10, 13, 26, 31, 62, 65, 130, 155, 310, 403, 806, 2015, 4030, 6863, 13726, 34315, 68630, 89219, 178438, 212753, 425506, 446095, 892190, 1063765, 2127530, 2765789, 5531578, 13828945, 27657890]

約数ペア:

[(1, 27657890), (2, 13828945), (5, 5531578), (10, 2765789), (13, 2127530), (26, 1063765), (31, 892190), (62, 446095), (65, 425506), (130, 212753), (155, 178438), (310, 89219), (403, 68630), (806, 34315), (2015, 13726), (4030, 6863)]