3961490

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{983}}^1$

素因数の和:1034

約数の個数: 32

約数和(自身を含む): 7934976

約数和(自身を除く): 3973486

約数列:

[1, 2, 5, 10, 13, 26, 31, 62, 65, 130, 155, 310, 403, 806, 983, 1966, 2015, 4030, 4915, 9830, 12779, 25558, 30473, 60946, 63895, 127790, 152365, 304730, 396149, 792298, 1980745, 3961490]

約数ペア:

[(1, 3961490), (2, 1980745), (5, 792298), (10, 396149), (13, 304730), (26, 152365), (31, 127790), (62, 63895), (65, 60946), (130, 30473), (155, 25558), (310, 12779), (403, 9830), (806, 4915), (983, 4030), (1966, 2015)]