27991740

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{9521}}^1$

素因数の和:9547

約数の個数: 72

約数和(自身を含む): 91182672

約数和(自身を除く): 63190932

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, 490, 588, 735, 980, 1470, 2940, 9521, 19042, 28563, 38084, 47605, 57126, 66647, 95210, 114252, 133294, 142815, 190420, 199941, 266588, 285630, 333235, 399882, 466529, 571260, 666470, 799764, 933058, 999705, 1332940, 1399587, 1866116, 1999410, 2332645, 2799174, 3998820, 4665290, 5598348, 6997935, 9330580, 13995870, 27991740]

約数ペア:

[(1, 27991740), (2, 13995870), (3, 9330580), (4, 6997935), (5, 5598348), (6, 4665290), (7, 3998820), (10, 2799174), (12, 2332645), (14, 1999410), (15, 1866116), (20, 1399587), (21, 1332940), (28, 999705), (30, 933058), (35, 799764), (42, 666470), (49, 571260), (60, 466529), (70, 399882), (84, 333235), (98, 285630), (105, 266588), (140, 199941), (147, 190420), (196, 142815), (210, 133294), (245, 114252), (294, 95210), (420, 66647), (490, 57126), (588, 47605), (735, 38084), (980, 28563), (1470, 19042), (2940, 9521)]