1289786500

素因数分解:

$2^2\times 5^3\times {\mathrm{19}}^1\times {\mathrm{137}}^1\times {\mathrm{991}}^1$

素因数の和:1166

約数の個数: 96

約数和(自身を含む): 2989808640

約数和(自身を除く): 1700022140

約数列:

[1, 2, 4, 5, 10, 19, 20, 25, 38, 50, 76, 95, 100, 125, 137, 190, 250, 274, 380, 475, 500, 548, 685, 950, 991, 1370, 1900, 1982, 2375, 2603, 2740, 3425, 3964, 4750, 4955, 5206, 6850, 9500, 9910, 10412, 13015, 13700, 17125, 18829, 19820, 24775, 26030, 34250, 37658, 49550, 52060, 65075, 68500, 75316, 94145, 99100, 123875, 130150, 135767, 188290, 247750, 260300, 271534, 325375, 376580, 470725, 495500, 543068, 650750, 678835, 941450, 1301500, 1357670, 1882900, 2353625, 2579573, 2715340, 3394175, 4707250, 5159146, 6788350, 9414500, 10318292, 12897865, 13576700, 16970875, 25795730, 33941750, 51591460, 64489325, 67883500, 128978650, 257957300, 322446625, 644893250, 1289786500]

約数ペア:

[(1, 1289786500), (2, 644893250), (4, 322446625), (5, 257957300), (10, 128978650), (19, 67883500), (20, 64489325), (25, 51591460), (38, 33941750), (50, 25795730), (76, 16970875), (95, 13576700), (100, 12897865), (125, 10318292), (137, 9414500), (190, 6788350), (250, 5159146), (274, 4707250), (380, 3394175), (475, 2715340), (500, 2579573), (548, 2353625), (685, 1882900), (950, 1357670), (991, 1301500), (1370, 941450), (1900, 678835), (1982, 650750), (2375, 543068), (2603, 495500), (2740, 470725), (3425, 376580), (3964, 325375), (4750, 271534), (4955, 260300), (5206, 247750), (6850, 188290), (9500, 135767), (9910, 130150), (10412, 123875), (13015, 99100), (13700, 94145), (17125, 75316), (18829, 68500), (19820, 65075), (24775, 52060), (26030, 49550), (34250, 37658)]