1237740

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{421}}^1$

素因数の和:447

約数の個数: 72

約数和(自身を含む): 4041072

約数和(自身を除く): 2803332

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 49, 60, 70, 84, 98, 105, 140, 147, 196, 210, 245, 294, 420, 421, 490, 588, 735, 842, 980, 1263, 1470, 1684, 2105, 2526, 2940, 2947, 4210, 5052, 5894, 6315, 8420, 8841, 11788, 12630, 14735, 17682, 20629, 25260, 29470, 35364, 41258, 44205, 58940, 61887, 82516, 88410, 103145, 123774, 176820, 206290, 247548, 309435, 412580, 618870, 1237740]

約数ペア:

[(1, 1237740), (2, 618870), (3, 412580), (4, 309435), (5, 247548), (6, 206290), (7, 176820), (10, 123774), (12, 103145), (14, 88410), (15, 82516), (20, 61887), (21, 58940), (28, 44205), (30, 41258), (35, 35364), (42, 29470), (49, 25260), (60, 20629), (70, 17682), (84, 14735), (98, 12630), (105, 11788), (140, 8841), (147, 8420), (196, 6315), (210, 5894), (245, 5052), (294, 4210), (420, 2947), (421, 2940), (490, 2526), (588, 2105), (735, 1684), (842, 1470), (980, 1263)]