51642990

素因数分解:

$2^1\times 3^2\times 5^1\times 7^1\times {\mathrm{81973}}^1$

素因数の和:81993

約数の個数: 48

約数和(自身を含む): 153455328

約数和(自身を除く): 101812338

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 30, 35, 42, 45, 63, 70, 90, 105, 126, 210, 315, 630, 81973, 163946, 245919, 409865, 491838, 573811, 737757, 819730, 1147622, 1229595, 1475514, 1721433, 2459190, 2869055, 3442866, 3688785, 5164299, 5738110, 7377570, 8607165, 10328598, 17214330, 25821495, 51642990]

約数ペア:

[(1, 51642990), (2, 25821495), (3, 17214330), (5, 10328598), (6, 8607165), (7, 7377570), (9, 5738110), (10, 5164299), (14, 3688785), (15, 3442866), (18, 2869055), (21, 2459190), (30, 1721433), (35, 1475514), (42, 1229595), (45, 1147622), (63, 819730), (70, 737757), (90, 573811), (105, 491838), (126, 409865), (210, 245919), (315, 163946), (630, 81973)]