856304820

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{679607}}^1$

素因数の和:679629

約数の個数: 72

約数和(自身を含む): 2968527744

約数和(自身を除く): 2112222924

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 140, 180, 210, 252, 315, 420, 630, 1260, 679607, 1359214, 2038821, 2718428, 3398035, 4077642, 4757249, 6116463, 6796070, 8155284, 9514498, 10194105, 12232926, 13592140, 14271747, 19028996, 20388210, 23786245, 24465852, 28543494, 30582315, 40776420, 42815241, 47572490, 57086988, 61164630, 71358735, 85630482, 95144980, 122329260, 142717470, 171260964, 214076205, 285434940, 428152410, 856304820]

約数ペア:

[(1, 856304820), (2, 428152410), (3, 285434940), (4, 214076205), (5, 171260964), (6, 142717470), (7, 122329260), (9, 95144980), (10, 85630482), (12, 71358735), (14, 61164630), (15, 57086988), (18, 47572490), (20, 42815241), (21, 40776420), (28, 30582315), (30, 28543494), (35, 24465852), (36, 23786245), (42, 20388210), (45, 19028996), (60, 14271747), (63, 13592140), (70, 12232926), (84, 10194105), (90, 9514498), (105, 8155284), (126, 6796070), (140, 6116463), (180, 4757249), (210, 4077642), (252, 3398035), (315, 2718428), (420, 2038821), (630, 1359214), (1260, 679607)]