261542520

素因数分解:

$2^3\times 3^4\times 5^1\times {\mathrm{89}}^1\times {\mathrm{907}}^1$

素因数の和:1019

約数の個数: 160

約数和(自身を含む): 889930800

約数和(自身を除く): 628388280

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 36, 40, 45, 54, 60, 72, 81, 89, 90, 108, 120, 135, 162, 178, 180, 216, 267, 270, 324, 356, 360, 405, 445, 534, 540, 648, 712, 801, 810, 890, 907, 1068, 1080, 1335, 1602, 1620, 1780, 1814, 2136, 2403, 2670, 2721, 3204, 3240, 3560, 3628, 4005, 4535, 4806, 5340, 5442, 6408, 7209, 7256, 8010, 8163, 9070, 9612, 10680, 10884, 12015, 13605, 14418, 16020, 16326, 18140, 19224, 21768, 24030, 24489, 27210, 28836, 32040, 32652, 36045, 36280, 40815, 48060, 48978, 54420, 57672, 65304, 72090, 73467, 80723, 81630, 96120, 97956, 108840, 122445, 144180, 146934, 161446, 163260, 195912, 242169, 244890, 288360, 293868, 322892, 326520, 367335, 403615, 484338, 489780, 587736, 645784, 726507, 734670, 807230, 968676, 979560, 1210845, 1453014, 1469340, 1614460, 1937352, 2179521, 2421690, 2906028, 2938680, 3228920, 3632535, 4359042, 4843380, 5812056, 6538563, 7265070, 8718084, 9686760, 10897605, 13077126, 14530140, 17436168, 21795210, 26154252, 29060280, 32692815, 43590420, 52308504, 65385630, 87180840, 130771260, 261542520]

約数ペア:

[(1, 261542520), (2, 130771260), (3, 87180840), (4, 65385630), (5, 52308504), (6, 43590420), (8, 32692815), (9, 29060280), (10, 26154252), (12, 21795210), (15, 17436168), (18, 14530140), (20, 13077126), (24, 10897605), (27, 9686760), (30, 8718084), (36, 7265070), (40, 6538563), (45, 5812056), (54, 4843380), (60, 4359042), (72, 3632535), (81, 3228920), (89, 2938680), (90, 2906028), (108, 2421690), (120, 2179521), (135, 1937352), (162, 1614460), (178, 1469340), (180, 1453014), (216, 1210845), (267, 979560), (270, 968676), (324, 807230), (356, 734670), (360, 726507), (405, 645784), (445, 587736), (534, 489780), (540, 484338), (648, 403615), (712, 367335), (801, 326520), (810, 322892), (890, 293868), (907, 288360), (1068, 244890), (1080, 242169), (1335, 195912), (1602, 163260), (1620, 161446), (1780, 146934), (1814, 144180), (2136, 122445), (2403, 108840), (2670, 97956), (2721, 96120), (3204, 81630), (3240, 80723), (3560, 73467), (3628, 72090), (4005, 65304), (4535, 57672), (4806, 54420), (5340, 48978), (5442, 48060), (6408, 40815), (7209, 36280), (7256, 36045), (8010, 32652), (8163, 32040), (9070, 28836), (9612, 27210), (10680, 24489), (10884, 24030), (12015, 21768), (13605, 19224), (14418, 18140), (16020, 16326)]