890501220

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{706747}}^1$

素因数の和:706769

約数の個数: 72

約数和(自身を含む): 3087075264

約数和(自身を除く): 2196574044

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, 706747, 1413494, 2120241, 2826988, 3533735, 4240482, 4947229, 6360723, 7067470, 8480964, 9894458, 10601205, 12721446, 14134940, 14841687, 19788916, 21202410, 24736145, 25442892, 29683374, 31803615, 42404820, 44525061, 49472290, 59366748, 63607230, 74208435, 89050122, 98944580, 127214460, 148416870, 178100244, 222625305, 296833740, 445250610, 890501220]

約数ペア:

[(1, 890501220), (2, 445250610), (3, 296833740), (4, 222625305), (5, 178100244), (6, 148416870), (7, 127214460), (9, 98944580), (10, 89050122), (12, 74208435), (14, 63607230), (15, 59366748), (18, 49472290), (20, 44525061), (21, 42404820), (28, 31803615), (30, 29683374), (35, 25442892), (36, 24736145), (42, 21202410), (45, 19788916), (60, 14841687), (63, 14134940), (70, 12721446), (84, 10601205), (90, 9894458), (105, 8480964), (126, 7067470), (140, 6360723), (180, 4947229), (210, 4240482), (252, 3533735), (315, 2826988), (420, 2120241), (630, 1413494), (1260, 706747)]