209981520

素因数分解:

$2^4\times 3^2\times 5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{683}}^1$

素因数の和:770

約数の個数: 240

約数和(自身を含む): 820340352

約数和(自身を除く): 610358832

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 35, 36, 40, 42, 45, 48, 56, 60, 61, 63, 70, 72, 80, 84, 90, 105, 112, 120, 122, 126, 140, 144, 168, 180, 183, 210, 240, 244, 252, 280, 305, 315, 336, 360, 366, 420, 427, 488, 504, 549, 560, 610, 630, 683, 720, 732, 840, 854, 915, 976, 1008, 1098, 1220, 1260, 1281, 1366, 1464, 1680, 1708, 1830, 2049, 2135, 2196, 2440, 2520, 2562, 2732, 2745, 2928, 3415, 3416, 3660, 3843, 4098, 4270, 4392, 4781, 4880, 5040, 5124, 5464, 5490, 6147, 6405, 6830, 6832, 7320, 7686, 8196, 8540, 8784, 9562, 10245, 10248, 10928, 10980, 12294, 12810, 13660, 14343, 14640, 15372, 16392, 17080, 19124, 19215, 20490, 20496, 21960, 23905, 24588, 25620, 27320, 28686, 30735, 30744, 32784, 34160, 38248, 38430, 40980, 41663, 43029, 43920, 47810, 49176, 51240, 54640, 57372, 61470, 61488, 71715, 76496, 76860, 81960, 83326, 86058, 95620, 98352, 102480, 114744, 122940, 124989, 143430, 153720, 163920, 166652, 172116, 191240, 208315, 215145, 229488, 245880, 249978, 286860, 291641, 307440, 333304, 344232, 374967, 382480, 416630, 430290, 491760, 499956, 573720, 583282, 624945, 666608, 688464, 749934, 833260, 860580, 874923, 999912, 1147440, 1166564, 1249890, 1458205, 1499868, 1666520, 1721160, 1749846, 1874835, 1999824, 2333128, 2499780, 2624769, 2916410, 2999736, 3333040, 3442320, 3499692, 3749670, 4374615, 4666256, 4999560, 5249538, 5832820, 5999472, 6999384, 7499340, 8749230, 9999120, 10499076, 11665640, 13123845, 13998768, 14998680, 17498460, 20998152, 23331280, 26247690, 29997360, 34996920, 41996304, 52495380, 69993840, 104990760, 209981520]

約数ペア:

[(1, 209981520), (2, 104990760), (3, 69993840), (4, 52495380), (5, 41996304), (6, 34996920), (7, 29997360), (8, 26247690), (9, 23331280), (10, 20998152), (12, 17498460), (14, 14998680), (15, 13998768), (16, 13123845), (18, 11665640), (20, 10499076), (21, 9999120), (24, 8749230), (28, 7499340), (30, 6999384), (35, 5999472), (36, 5832820), (40, 5249538), (42, 4999560), (45, 4666256), (48, 4374615), (56, 3749670), (60, 3499692), (61, 3442320), (63, 3333040), (70, 2999736), (72, 2916410), (80, 2624769), (84, 2499780), (90, 2333128), (105, 1999824), (112, 1874835), (120, 1749846), (122, 1721160), (126, 1666520), (140, 1499868), (144, 1458205), (168, 1249890), (180, 1166564), (183, 1147440), (210, 999912), (240, 874923), (244, 860580), (252, 833260), (280, 749934), (305, 688464), (315, 666608), (336, 624945), (360, 583282), (366, 573720), (420, 499956), (427, 491760), (488, 430290), (504, 416630), (549, 382480), (560, 374967), (610, 344232), (630, 333304), (683, 307440), (720, 291641), (732, 286860), (840, 249978), (854, 245880), (915, 229488), (976, 215145), (1008, 208315), (1098, 191240), (1220, 172116), (1260, 166652), (1281, 163920), (1366, 153720), (1464, 143430), (1680, 124989), (1708, 122940), (1830, 114744), (2049, 102480), (2135, 98352), (2196, 95620), (2440, 86058), (2520, 83326), (2562, 81960), (2732, 76860), (2745, 76496), (2928, 71715), (3415, 61488), (3416, 61470), (3660, 57372), (3843, 54640), (4098, 51240), (4270, 49176), (4392, 47810), (4781, 43920), (4880, 43029), (5040, 41663), (5124, 40980), (5464, 38430), (5490, 38248), (6147, 34160), (6405, 32784), (6830, 30744), (6832, 30735), (7320, 28686), (7686, 27320), (8196, 25620), (8540, 24588), (8784, 23905), (9562, 21960), (10245, 20496), (10248, 20490), (10928, 19215), (10980, 19124), (12294, 17080), (12810, 16392), (13660, 15372), (14343, 14640)]