397354860

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{315361}}^1$

素因数の和:315383

約数の個数: 72

約数和(自身を含む): 1377501216

約数和(自身を除く): 980146356

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, 315361, 630722, 946083, 1261444, 1576805, 1892166, 2207527, 2838249, 3153610, 3784332, 4415054, 4730415, 5676498, 6307220, 6622581, 8830108, 9460830, 11037635, 11352996, 13245162, 14191245, 18921660, 19867743, 22075270, 26490324, 28382490, 33112905, 39735486, 44150540, 56764980, 66225810, 79470972, 99338715, 132451620, 198677430, 397354860]

約数ペア:

[(1, 397354860), (2, 198677430), (3, 132451620), (4, 99338715), (5, 79470972), (6, 66225810), (7, 56764980), (9, 44150540), (10, 39735486), (12, 33112905), (14, 28382490), (15, 26490324), (18, 22075270), (20, 19867743), (21, 18921660), (28, 14191245), (30, 13245162), (35, 11352996), (36, 11037635), (42, 9460830), (45, 8830108), (60, 6622581), (63, 6307220), (70, 5676498), (84, 4730415), (90, 4415054), (105, 3784332), (126, 3153610), (140, 2838249), (180, 2207527), (210, 1892166), (252, 1576805), (315, 1261444), (420, 946083), (630, 630722), (1260, 315361)]