661804920

素因数分解:

$2^3\times 3^2\times 5^1\times 7^1\times {\mathrm{262621}}^1$

素因数の和:262645

約数の個数: 96

約数和(自身を含む): 2458141920

約数和(自身を除く): 1796337000

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 20, 21, 24, 28, 30, 35, 36, 40, 42, 45, 56, 60, 63, 70, 72, 84, 90, 105, 120, 126, 140, 168, 180, 210, 252, 280, 315, 360, 420, 504, 630, 840, 1260, 2520, 262621, 525242, 787863, 1050484, 1313105, 1575726, 1838347, 2100968, 2363589, 2626210, 3151452, 3676694, 3939315, 4727178, 5252420, 5515041, 6302904, 7353388, 7878630, 9191735, 9454356, 10504840, 11030082, 11817945, 14706776, 15757260, 16545123, 18383470, 18908712, 22060164, 23635890, 27575205, 31514520, 33090246, 36766940, 44120328, 47271780, 55150410, 66180492, 73533880, 82725615, 94543560, 110300820, 132360984, 165451230, 220601640, 330902460, 661804920]

約数ペア:

[(1, 661804920), (2, 330902460), (3, 220601640), (4, 165451230), (5, 132360984), (6, 110300820), (7, 94543560), (8, 82725615), (9, 73533880), (10, 66180492), (12, 55150410), (14, 47271780), (15, 44120328), (18, 36766940), (20, 33090246), (21, 31514520), (24, 27575205), (28, 23635890), (30, 22060164), (35, 18908712), (36, 18383470), (40, 16545123), (42, 15757260), (45, 14706776), (56, 11817945), (60, 11030082), (63, 10504840), (70, 9454356), (72, 9191735), (84, 7878630), (90, 7353388), (105, 6302904), (120, 5515041), (126, 5252420), (140, 4727178), (168, 3939315), (180, 3676694), (210, 3151452), (252, 2626210), (280, 2363589), (315, 2100968), (360, 1838347), (420, 1575726), (504, 1313105), (630, 1050484), (840, 787863), (1260, 525242), (2520, 262621)]