7860825

素因数分解:

$3^2\times 5^2\times 7^2\times {\mathrm{23}}^1\times {\mathrm{31}}^1$

素因数の和:84

約数の個数: 108

約数和(自身を含む): 17641728

約数和(自身を除く): 9780903

約数列:

[1, 3, 5, 7, 9, 15, 21, 23, 25, 31, 35, 45, 49, 63, 69, 75, 93, 105, 115, 147, 155, 161, 175, 207, 217, 225, 245, 279, 315, 345, 441, 465, 483, 525, 575, 651, 713, 735, 775, 805, 1035, 1085, 1127, 1225, 1395, 1449, 1519, 1575, 1725, 1953, 2139, 2205, 2325, 2415, 3255, 3381, 3565, 3675, 4025, 4557, 4991, 5175, 5425, 5635, 6417, 6975, 7245, 7595, 9765, 10143, 10695, 11025, 12075, 13671, 14973, 16275, 16905, 17825, 22785, 24955, 28175, 32085, 34937, 36225, 37975, 44919, 48825, 50715, 53475, 68355, 74865, 84525, 104811, 113925, 124775, 160425, 174685, 224595, 253575, 314433, 341775, 374325, 524055, 873425, 1122975, 1572165, 2620275, 7860825]

約数ペア:

[(1, 7860825), (3, 2620275), (5, 1572165), (7, 1122975), (9, 873425), (15, 524055), (21, 374325), (23, 341775), (25, 314433), (31, 253575), (35, 224595), (45, 174685), (49, 160425), (63, 124775), (69, 113925), (75, 104811), (93, 84525), (105, 74865), (115, 68355), (147, 53475), (155, 50715), (161, 48825), (175, 44919), (207, 37975), (217, 36225), (225, 34937), (245, 32085), (279, 28175), (315, 24955), (345, 22785), (441, 17825), (465, 16905), (483, 16275), (525, 14973), (575, 13671), (651, 12075), (713, 11025), (735, 10695), (775, 10143), (805, 9765), (1035, 7595), (1085, 7245), (1127, 6975), (1225, 6417), (1395, 5635), (1449, 5425), (1519, 5175), (1575, 4991), (1725, 4557), (1953, 4025), (2139, 3675), (2205, 3565), (2325, 3381), (2415, 3255)]