406552020

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{138283}}^1$

素因数の和:138309

約数の個数: 72

約数和(自身を含む): 1324207584

約数和(自身を除く): 917655564

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, 138283, 276566, 414849, 553132, 691415, 829698, 967981, 1382830, 1659396, 1935962, 2074245, 2765660, 2903943, 3871924, 4148490, 4839905, 5807886, 6775867, 8296980, 9679810, 11615772, 13551734, 14519715, 19359620, 20327601, 27103468, 29039430, 33879335, 40655202, 58078860, 67758670, 81310404, 101638005, 135517340, 203276010, 406552020]

約数ペア:

[(1, 406552020), (2, 203276010), (3, 135517340), (4, 101638005), (5, 81310404), (6, 67758670), (7, 58078860), (10, 40655202), (12, 33879335), (14, 29039430), (15, 27103468), (20, 20327601), (21, 19359620), (28, 14519715), (30, 13551734), (35, 11615772), (42, 9679810), (49, 8296980), (60, 6775867), (70, 5807886), (84, 4839905), (98, 4148490), (105, 3871924), (140, 2903943), (147, 2765660), (196, 2074245), (210, 1935962), (245, 1659396), (294, 1382830), (420, 967981), (490, 829698), (588, 691415), (735, 553132), (980, 414849), (1470, 276566), (2940, 138283)]