3987375

素因数分解:

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

素因数の和:70

約数の個数: 64

約数和(自身を含む): 7987200

約数和(自身を除く): 3999825

約数列:

[1, 3, 5, 7, 15, 21, 25, 31, 35, 49, 75, 93, 105, 125, 147, 155, 175, 217, 245, 343, 375, 465, 525, 651, 735, 775, 875, 1029, 1085, 1225, 1519, 1715, 2325, 2625, 3255, 3675, 3875, 4557, 5145, 5425, 6125, 7595, 8575, 10633, 11625, 16275, 18375, 22785, 25725, 27125, 31899, 37975, 42875, 53165, 81375, 113925, 128625, 159495, 189875, 265825, 569625, 797475, 1329125, 3987375]

約数ペア:

[(1, 3987375), (3, 1329125), (5, 797475), (7, 569625), (15, 265825), (21, 189875), (25, 159495), (31, 128625), (35, 113925), (49, 81375), (75, 53165), (93, 42875), (105, 37975), (125, 31899), (147, 27125), (155, 25725), (175, 22785), (217, 18375), (245, 16275), (343, 11625), (375, 10633), (465, 8575), (525, 7595), (651, 6125), (735, 5425), (775, 5145), (875, 4557), (1029, 3875), (1085, 3675), (1225, 3255), (1519, 2625), (1715, 2325)]