81861000

素因数分解:

$2^3\times 3^1\times 5^3\times {\mathrm{13}}^1\times {\mathrm{2099}}^1$

素因数の和:2136

約数の個数: 128

約数和(自身を含む): 275184000

約数和(自身を除く): 193323000

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 25, 26, 30, 39, 40, 50, 52, 60, 65, 75, 78, 100, 104, 120, 125, 130, 150, 156, 195, 200, 250, 260, 300, 312, 325, 375, 390, 500, 520, 600, 650, 750, 780, 975, 1000, 1300, 1500, 1560, 1625, 1950, 2099, 2600, 3000, 3250, 3900, 4198, 4875, 6297, 6500, 7800, 8396, 9750, 10495, 12594, 13000, 16792, 19500, 20990, 25188, 27287, 31485, 39000, 41980, 50376, 52475, 54574, 62970, 81861, 83960, 104950, 109148, 125940, 136435, 157425, 163722, 209900, 218296, 251880, 262375, 272870, 314850, 327444, 409305, 419800, 524750, 545740, 629700, 654888, 682175, 787125, 818610, 1049500, 1091480, 1259400, 1364350, 1574250, 1637220, 2046525, 2099000, 2728700, 3148500, 3274440, 3410875, 4093050, 5457400, 6297000, 6821750, 8186100, 10232625, 13643500, 16372200, 20465250, 27287000, 40930500, 81861000]

約数ペア:

[(1, 81861000), (2, 40930500), (3, 27287000), (4, 20465250), (5, 16372200), (6, 13643500), (8, 10232625), (10, 8186100), (12, 6821750), (13, 6297000), (15, 5457400), (20, 4093050), (24, 3410875), (25, 3274440), (26, 3148500), (30, 2728700), (39, 2099000), (40, 2046525), (50, 1637220), (52, 1574250), (60, 1364350), (65, 1259400), (75, 1091480), (78, 1049500), (100, 818610), (104, 787125), (120, 682175), (125, 654888), (130, 629700), (150, 545740), (156, 524750), (195, 419800), (200, 409305), (250, 327444), (260, 314850), (300, 272870), (312, 262375), (325, 251880), (375, 218296), (390, 209900), (500, 163722), (520, 157425), (600, 136435), (650, 125940), (750, 109148), (780, 104950), (975, 83960), (1000, 81861), (1300, 62970), (1500, 54574), (1560, 52475), (1625, 50376), (1950, 41980), (2099, 39000), (2600, 31485), (3000, 27287), (3250, 25188), (3900, 20990), (4198, 19500), (4875, 16792), (6297, 13000), (6500, 12594), (7800, 10495), (8396, 9750)]