221467260

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{75329}}^1$

素因数の和:75355

約数の個数: 72

約数和(自身を含む): 721360080

約数和(自身を除く): 499892820

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, 75329, 150658, 225987, 301316, 376645, 451974, 527303, 753290, 903948, 1054606, 1129935, 1506580, 1581909, 2109212, 2259870, 2636515, 3163818, 3691121, 4519740, 5273030, 6327636, 7382242, 7909545, 10546060, 11073363, 14764484, 15819090, 18455605, 22146726, 31638180, 36911210, 44293452, 55366815, 73822420, 110733630, 221467260]

約数ペア:

[(1, 221467260), (2, 110733630), (3, 73822420), (4, 55366815), (5, 44293452), (6, 36911210), (7, 31638180), (10, 22146726), (12, 18455605), (14, 15819090), (15, 14764484), (20, 11073363), (21, 10546060), (28, 7909545), (30, 7382242), (35, 6327636), (42, 5273030), (49, 4519740), (60, 3691121), (70, 3163818), (84, 2636515), (98, 2259870), (105, 2109212), (140, 1581909), (147, 1506580), (196, 1129935), (210, 1054606), (245, 903948), (294, 753290), (420, 527303), (490, 451974), (588, 376645), (735, 301316), (980, 225987), (1470, 150658), (2940, 75329)]