991800

素因数分解:

$2^3\times 3^2\times 5^2\times {\mathrm{19}}^1\times {\mathrm{29}}^1$

素因数の和:70

約数の個数: 144

約数和(自身を含む): 3627000

約数和(自身を除く): 2635200

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 19, 20, 24, 25, 29, 30, 36, 38, 40, 45, 50, 57, 58, 60, 72, 75, 76, 87, 90, 95, 100, 114, 116, 120, 145, 150, 152, 171, 174, 180, 190, 200, 225, 228, 232, 261, 285, 290, 300, 342, 348, 360, 380, 435, 450, 456, 475, 522, 551, 570, 580, 600, 684, 696, 725, 760, 855, 870, 900, 950, 1044, 1102, 1140, 1160, 1305, 1368, 1425, 1450, 1653, 1710, 1740, 1800, 1900, 2088, 2175, 2204, 2280, 2610, 2755, 2850, 2900, 3306, 3420, 3480, 3800, 4275, 4350, 4408, 4959, 5220, 5510, 5700, 5800, 6525, 6612, 6840, 8265, 8550, 8700, 9918, 10440, 11020, 11400, 13050, 13224, 13775, 16530, 17100, 17400, 19836, 22040, 24795, 26100, 27550, 33060, 34200, 39672, 41325, 49590, 52200, 55100, 66120, 82650, 99180, 110200, 123975, 165300, 198360, 247950, 330600, 495900, 991800]

約数ペア:

[(1, 991800), (2, 495900), (3, 330600), (4, 247950), (5, 198360), (6, 165300), (8, 123975), (9, 110200), (10, 99180), (12, 82650), (15, 66120), (18, 55100), (19, 52200), (20, 49590), (24, 41325), (25, 39672), (29, 34200), (30, 33060), (36, 27550), (38, 26100), (40, 24795), (45, 22040), (50, 19836), (57, 17400), (58, 17100), (60, 16530), (72, 13775), (75, 13224), (76, 13050), (87, 11400), (90, 11020), (95, 10440), (100, 9918), (114, 8700), (116, 8550), (120, 8265), (145, 6840), (150, 6612), (152, 6525), (171, 5800), (174, 5700), (180, 5510), (190, 5220), (200, 4959), (225, 4408), (228, 4350), (232, 4275), (261, 3800), (285, 3480), (290, 3420), (300, 3306), (342, 2900), (348, 2850), (360, 2755), (380, 2610), (435, 2280), (450, 2204), (456, 2175), (475, 2088), (522, 1900), (551, 1800), (570, 1740), (580, 1710), (600, 1653), (684, 1450), (696, 1425), (725, 1368), (760, 1305), (855, 1160), (870, 1140), (900, 1102), (950, 1044)]