28791420

素因数分解:

$2^2\times 3^1\times 5^1\times 7^3\times {\mathrm{1399}}^1$

素因数の和:1432

約数の個数: 96

約数和(自身を含む): 94080000

約数和(自身を除く): 65288580

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, 343, 420, 490, 588, 686, 735, 980, 1029, 1372, 1399, 1470, 1715, 2058, 2798, 2940, 3430, 4116, 4197, 5145, 5596, 6860, 6995, 8394, 9793, 10290, 13990, 16788, 19586, 20580, 20985, 27980, 29379, 39172, 41970, 48965, 58758, 68551, 83940, 97930, 117516, 137102, 146895, 195860, 205653, 274204, 293790, 342755, 411306, 479857, 587580, 685510, 822612, 959714, 1028265, 1371020, 1439571, 1919428, 2056530, 2399285, 2879142, 4113060, 4798570, 5758284, 7197855, 9597140, 14395710, 28791420]

約数ペア:

[(1, 28791420), (2, 14395710), (3, 9597140), (4, 7197855), (5, 5758284), (6, 4798570), (7, 4113060), (10, 2879142), (12, 2399285), (14, 2056530), (15, 1919428), (20, 1439571), (21, 1371020), (28, 1028265), (30, 959714), (35, 822612), (42, 685510), (49, 587580), (60, 479857), (70, 411306), (84, 342755), (98, 293790), (105, 274204), (140, 205653), (147, 195860), (196, 146895), (210, 137102), (245, 117516), (294, 97930), (343, 83940), (420, 68551), (490, 58758), (588, 48965), (686, 41970), (735, 39172), (980, 29379), (1029, 27980), (1372, 20985), (1399, 20580), (1470, 19586), (1715, 16788), (2058, 13990), (2798, 10290), (2940, 9793), (3430, 8394), (4116, 6995), (4197, 6860), (5145, 5596)]