1990800

素因数分解:

$2^4\times 3^2\times 5^2\times 7^1\times {\mathrm{79}}^1$

素因数の和:110

約数の個数: 180

約数和(自身を含む): 7995520

約数和(自身を除く): 6004720

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 25, 28, 30, 35, 36, 40, 42, 45, 48, 50, 56, 60, 63, 70, 72, 75, 79, 80, 84, 90, 100, 105, 112, 120, 126, 140, 144, 150, 158, 168, 175, 180, 200, 210, 225, 237, 240, 252, 280, 300, 315, 316, 336, 350, 360, 395, 400, 420, 450, 474, 504, 525, 553, 560, 600, 630, 632, 700, 711, 720, 790, 840, 900, 948, 1008, 1050, 1106, 1185, 1200, 1260, 1264, 1400, 1422, 1575, 1580, 1659, 1680, 1800, 1896, 1975, 2100, 2212, 2370, 2520, 2765, 2800, 2844, 3150, 3160, 3318, 3555, 3600, 3792, 3950, 4200, 4424, 4740, 4977, 5040, 5530, 5688, 5925, 6300, 6320, 6636, 7110, 7900, 8295, 8400, 8848, 9480, 9954, 11060, 11376, 11850, 12600, 13272, 13825, 14220, 15800, 16590, 17775, 18960, 19908, 22120, 23700, 24885, 25200, 26544, 27650, 28440, 31600, 33180, 35550, 39816, 41475, 44240, 47400, 49770, 55300, 56880, 66360, 71100, 79632, 82950, 94800, 99540, 110600, 124425, 132720, 142200, 165900, 199080, 221200, 248850, 284400, 331800, 398160, 497700, 663600, 995400, 1990800]

約数ペア:

[(1, 1990800), (2, 995400), (3, 663600), (4, 497700), (5, 398160), (6, 331800), (7, 284400), (8, 248850), (9, 221200), (10, 199080), (12, 165900), (14, 142200), (15, 132720), (16, 124425), (18, 110600), (20, 99540), (21, 94800), (24, 82950), (25, 79632), (28, 71100), (30, 66360), (35, 56880), (36, 55300), (40, 49770), (42, 47400), (45, 44240), (48, 41475), (50, 39816), (56, 35550), (60, 33180), (63, 31600), (70, 28440), (72, 27650), (75, 26544), (79, 25200), (80, 24885), (84, 23700), (90, 22120), (100, 19908), (105, 18960), (112, 17775), (120, 16590), (126, 15800), (140, 14220), (144, 13825), (150, 13272), (158, 12600), (168, 11850), (175, 11376), (180, 11060), (200, 9954), (210, 9480), (225, 8848), (237, 8400), (240, 8295), (252, 7900), (280, 7110), (300, 6636), (315, 6320), (316, 6300), (336, 5925), (350, 5688), (360, 5530), (395, 5040), (400, 4977), (420, 4740), (450, 4424), (474, 4200), (504, 3950), (525, 3792), (553, 3600), (560, 3555), (600, 3318), (630, 3160), (632, 3150), (700, 2844), (711, 2800), (720, 2765), (790, 2520), (840, 2370), (900, 2212), (948, 2100), (1008, 1975), (1050, 1896), (1106, 1800), (1185, 1680), (1200, 1659), (1260, 1580), (1264, 1575), (1400, 1422)]