68481790

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{16993}}^1$

素因数の和:17044

約数の個数: 32

約数和(自身を含む): 137039616

約数和(自身を除く): 68557826

約数列:

[1, 2, 5, 10, 13, 26, 31, 62, 65, 130, 155, 310, 403, 806, 2015, 4030, 16993, 33986, 84965, 169930, 220909, 441818, 526783, 1053566, 1104545, 2209090, 2633915, 5267830, 6848179, 13696358, 34240895, 68481790]

約数ペア:

[(1, 68481790), (2, 34240895), (5, 13696358), (10, 6848179), (13, 5267830), (26, 2633915), (31, 2209090), (62, 1104545), (65, 1053566), (130, 526783), (155, 441818), (310, 220909), (403, 169930), (806, 84965), (2015, 33986), (4030, 16993)]