1296254820

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{440903}}^1$

素因数の和:440929

約数の個数: 72

約数和(自身を含む): 4222096704

約数和(自身を除く): 2925841884

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, 440903, 881806, 1322709, 1763612, 2204515, 2645418, 3086321, 4409030, 5290836, 6172642, 6613545, 8818060, 9258963, 12345284, 13227090, 15431605, 18517926, 21604247, 26454180, 30863210, 37035852, 43208494, 46294815, 61726420, 64812741, 86416988, 92589630, 108021235, 129625482, 185179260, 216042470, 259250964, 324063705, 432084940, 648127410, 1296254820]

約数ペア:

[(1, 1296254820), (2, 648127410), (3, 432084940), (4, 324063705), (5, 259250964), (6, 216042470), (7, 185179260), (10, 129625482), (12, 108021235), (14, 92589630), (15, 86416988), (20, 64812741), (21, 61726420), (28, 46294815), (30, 43208494), (35, 37035852), (42, 30863210), (49, 26454180), (60, 21604247), (70, 18517926), (84, 15431605), (98, 13227090), (105, 12345284), (140, 9258963), (147, 8818060), (196, 6613545), (210, 6172642), (245, 5290836), (294, 4409030), (420, 3086321), (490, 2645418), (588, 2204515), (735, 1763612), (980, 1322709), (1470, 881806), (2940, 440903)]