27778000

素因数分解:

$2^4\times 5^3\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1$

素因数の和:102

約数の個数: 160

約数和(自身を含む): 76602240

約数和(自身を除く): 48824240

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 19, 20, 25, 34, 38, 40, 43, 50, 68, 76, 80, 85, 86, 95, 100, 125, 136, 152, 170, 172, 190, 200, 215, 250, 272, 304, 323, 340, 344, 380, 400, 425, 430, 475, 500, 646, 680, 688, 731, 760, 817, 850, 860, 950, 1000, 1075, 1292, 1360, 1462, 1520, 1615, 1634, 1700, 1720, 1900, 2000, 2125, 2150, 2375, 2584, 2924, 3230, 3268, 3400, 3440, 3655, 3800, 4085, 4250, 4300, 4750, 5168, 5375, 5848, 6460, 6536, 6800, 7310, 7600, 8075, 8170, 8500, 8600, 9500, 10750, 11696, 12920, 13072, 13889, 14620, 16150, 16340, 17000, 17200, 18275, 19000, 20425, 21500, 25840, 27778, 29240, 32300, 32680, 34000, 36550, 38000, 40375, 40850, 43000, 55556, 58480, 64600, 65360, 69445, 73100, 80750, 81700, 86000, 91375, 102125, 111112, 129200, 138890, 146200, 161500, 163400, 182750, 204250, 222224, 277780, 292400, 323000, 326800, 347225, 365500, 408500, 555560, 646000, 694450, 731000, 817000, 1111120, 1388900, 1462000, 1634000, 1736125, 2777800, 3472250, 5555600, 6944500, 13889000, 27778000]

約数ペア:

[(1, 27778000), (2, 13889000), (4, 6944500), (5, 5555600), (8, 3472250), (10, 2777800), (16, 1736125), (17, 1634000), (19, 1462000), (20, 1388900), (25, 1111120), (34, 817000), (38, 731000), (40, 694450), (43, 646000), (50, 555560), (68, 408500), (76, 365500), (80, 347225), (85, 326800), (86, 323000), (95, 292400), (100, 277780), (125, 222224), (136, 204250), (152, 182750), (170, 163400), (172, 161500), (190, 146200), (200, 138890), (215, 129200), (250, 111112), (272, 102125), (304, 91375), (323, 86000), (340, 81700), (344, 80750), (380, 73100), (400, 69445), (425, 65360), (430, 64600), (475, 58480), (500, 55556), (646, 43000), (680, 40850), (688, 40375), (731, 38000), (760, 36550), (817, 34000), (850, 32680), (860, 32300), (950, 29240), (1000, 27778), (1075, 25840), (1292, 21500), (1360, 20425), (1462, 19000), (1520, 18275), (1615, 17200), (1634, 17000), (1700, 16340), (1720, 16150), (1900, 14620), (2000, 13889), (2125, 13072), (2150, 12920), (2375, 11696), (2584, 10750), (2924, 9500), (3230, 8600), (3268, 8500), (3400, 8170), (3440, 8075), (3655, 7600), (3800, 7310), (4085, 6800), (4250, 6536), (4300, 6460), (4750, 5848), (5168, 5375)]