3888950

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{193}}^1$

素因数の和:249

約数の個数: 48

約数和(自身を含む): 8082816

約数和(自身を除く): 4193866

約数列:

[1, 2, 5, 10, 13, 25, 26, 31, 50, 62, 65, 130, 155, 193, 310, 325, 386, 403, 650, 775, 806, 965, 1550, 1930, 2015, 2509, 4030, 4825, 5018, 5983, 9650, 10075, 11966, 12545, 20150, 25090, 29915, 59830, 62725, 77779, 125450, 149575, 155558, 299150, 388895, 777790, 1944475, 3888950]

約数ペア:

[(1, 3888950), (2, 1944475), (5, 777790), (10, 388895), (13, 299150), (25, 155558), (26, 149575), (31, 125450), (50, 77779), (62, 62725), (65, 59830), (130, 29915), (155, 25090), (193, 20150), (310, 12545), (325, 11966), (386, 10075), (403, 9650), (650, 5983), (775, 5018), (806, 4825), (965, 4030), (1550, 2509), (1930, 2015)]