870865000

素因数分解:

$2^3\times 5^4\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{103}}^1$

素因数の和:237

約数の個数: 160

約数和(自身を含む): 2193048000

約数和(自身を除く): 1322183000

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 25, 38, 40, 50, 76, 89, 95, 100, 103, 125, 152, 178, 190, 200, 206, 250, 356, 380, 412, 445, 475, 500, 515, 625, 712, 760, 824, 890, 950, 1000, 1030, 1250, 1691, 1780, 1900, 1957, 2060, 2225, 2375, 2500, 2575, 3382, 3560, 3800, 3914, 4120, 4450, 4750, 5000, 5150, 6764, 7828, 8455, 8900, 9167, 9500, 9785, 10300, 11125, 11875, 12875, 13528, 15656, 16910, 17800, 18334, 19000, 19570, 20600, 22250, 23750, 25750, 33820, 36668, 39140, 42275, 44500, 45835, 47500, 48925, 51500, 55625, 64375, 67640, 73336, 78280, 84550, 89000, 91670, 95000, 97850, 103000, 111250, 128750, 169100, 174173, 183340, 195700, 211375, 222500, 229175, 244625, 257500, 338200, 348346, 366680, 391400, 422750, 445000, 458350, 489250, 515000, 696692, 845500, 870865, 916700, 978500, 1056875, 1145875, 1223125, 1393384, 1691000, 1741730, 1833400, 1957000, 2113750, 2291750, 2446250, 3483460, 4227500, 4354325, 4583500, 4892500, 5729375, 6966920, 8455000, 8708650, 9167000, 9785000, 11458750, 17417300, 21771625, 22917500, 34834600, 43543250, 45835000, 87086500, 108858125, 174173000, 217716250, 435432500, 870865000]

約数ペア:

[(1, 870865000), (2, 435432500), (4, 217716250), (5, 174173000), (8, 108858125), (10, 87086500), (19, 45835000), (20, 43543250), (25, 34834600), (38, 22917500), (40, 21771625), (50, 17417300), (76, 11458750), (89, 9785000), (95, 9167000), (100, 8708650), (103, 8455000), (125, 6966920), (152, 5729375), (178, 4892500), (190, 4583500), (200, 4354325), (206, 4227500), (250, 3483460), (356, 2446250), (380, 2291750), (412, 2113750), (445, 1957000), (475, 1833400), (500, 1741730), (515, 1691000), (625, 1393384), (712, 1223125), (760, 1145875), (824, 1056875), (890, 978500), (950, 916700), (1000, 870865), (1030, 845500), (1250, 696692), (1691, 515000), (1780, 489250), (1900, 458350), (1957, 445000), (2060, 422750), (2225, 391400), (2375, 366680), (2500, 348346), (2575, 338200), (3382, 257500), (3560, 244625), (3800, 229175), (3914, 222500), (4120, 211375), (4450, 195700), (4750, 183340), (5000, 174173), (5150, 169100), (6764, 128750), (7828, 111250), (8455, 103000), (8900, 97850), (9167, 95000), (9500, 91670), (9785, 89000), (10300, 84550), (11125, 78280), (11875, 73336), (12875, 67640), (13528, 64375), (15656, 55625), (16910, 51500), (17800, 48925), (18334, 47500), (19000, 45835), (19570, 44500), (20600, 42275), (22250, 39140), (23750, 36668), (25750, 33820)]