128905000

素因数分解:

$2^3\times 5^4\times 7^1\times {\mathrm{29}}^1\times {\mathrm{127}}^1$

素因数の和:189

約数の個数: 160

約数和(自身を含む): 359884800

約数和(自身を除く): 230979800

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 25, 28, 29, 35, 40, 50, 56, 58, 70, 100, 116, 125, 127, 140, 145, 175, 200, 203, 232, 250, 254, 280, 290, 350, 406, 500, 508, 580, 625, 635, 700, 725, 812, 875, 889, 1000, 1015, 1016, 1160, 1250, 1270, 1400, 1450, 1624, 1750, 1778, 2030, 2500, 2540, 2900, 3175, 3500, 3556, 3625, 3683, 4060, 4375, 4445, 5000, 5075, 5080, 5800, 6350, 7000, 7112, 7250, 7366, 8120, 8750, 8890, 10150, 12700, 14500, 14732, 15875, 17500, 17780, 18125, 18415, 20300, 22225, 25375, 25400, 25781, 29000, 29464, 31750, 35000, 35560, 36250, 36830, 40600, 44450, 50750, 51562, 63500, 72500, 73660, 79375, 88900, 92075, 101500, 103124, 111125, 126875, 127000, 128905, 145000, 147320, 158750, 177800, 184150, 203000, 206248, 222250, 253750, 257810, 317500, 368300, 444500, 460375, 507500, 515620, 555625, 635000, 644525, 736600, 889000, 920750, 1015000, 1031240, 1111250, 1289050, 1841500, 2222500, 2301875, 2578100, 3222625, 3683000, 4445000, 4603750, 5156200, 6445250, 9207500, 12890500, 16113125, 18415000, 25781000, 32226250, 64452500, 128905000]

約数ペア:

[(1, 128905000), (2, 64452500), (4, 32226250), (5, 25781000), (7, 18415000), (8, 16113125), (10, 12890500), (14, 9207500), (20, 6445250), (25, 5156200), (28, 4603750), (29, 4445000), (35, 3683000), (40, 3222625), (50, 2578100), (56, 2301875), (58, 2222500), (70, 1841500), (100, 1289050), (116, 1111250), (125, 1031240), (127, 1015000), (140, 920750), (145, 889000), (175, 736600), (200, 644525), (203, 635000), (232, 555625), (250, 515620), (254, 507500), (280, 460375), (290, 444500), (350, 368300), (406, 317500), (500, 257810), (508, 253750), (580, 222250), (625, 206248), (635, 203000), (700, 184150), (725, 177800), (812, 158750), (875, 147320), (889, 145000), (1000, 128905), (1015, 127000), (1016, 126875), (1160, 111125), (1250, 103124), (1270, 101500), (1400, 92075), (1450, 88900), (1624, 79375), (1750, 73660), (1778, 72500), (2030, 63500), (2500, 51562), (2540, 50750), (2900, 44450), (3175, 40600), (3500, 36830), (3556, 36250), (3625, 35560), (3683, 35000), (4060, 31750), (4375, 29464), (4445, 29000), (5000, 25781), (5075, 25400), (5080, 25375), (5800, 22225), (6350, 20300), (7000, 18415), (7112, 18125), (7250, 17780), (7366, 17500), (8120, 15875), (8750, 14732), (8890, 14500), (10150, 12700)]