81461700

素因数分解:

$2^2\times 3^4\times 5^2\times {\mathrm{89}}^1\times {\mathrm{113}}^1$

素因数の和:228

約数の個数: 180

約数和(自身を含む): 269396820

約数和(自身を除く): 187935120

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 25, 27, 30, 36, 45, 50, 54, 60, 75, 81, 89, 90, 100, 108, 113, 135, 150, 162, 178, 180, 225, 226, 267, 270, 300, 324, 339, 356, 405, 445, 450, 452, 534, 540, 565, 675, 678, 801, 810, 890, 900, 1017, 1068, 1130, 1335, 1350, 1356, 1602, 1620, 1695, 1780, 2025, 2034, 2225, 2260, 2403, 2670, 2700, 2825, 3051, 3204, 3390, 4005, 4050, 4068, 4450, 4806, 5085, 5340, 5650, 6102, 6675, 6780, 7209, 8010, 8100, 8475, 8900, 9153, 9612, 10057, 10170, 11300, 12015, 12204, 13350, 14418, 15255, 16020, 16950, 18306, 20025, 20114, 20340, 24030, 25425, 26700, 28836, 30171, 30510, 33900, 36045, 36612, 40050, 40228, 45765, 48060, 50285, 50850, 60075, 60342, 61020, 72090, 76275, 80100, 90513, 91530, 100570, 101700, 120150, 120684, 144180, 150855, 152550, 180225, 181026, 183060, 201140, 228825, 240300, 251425, 271539, 301710, 305100, 360450, 362052, 452565, 457650, 502850, 543078, 603420, 720900, 754275, 814617, 905130, 915300, 1005700, 1086156, 1357695, 1508550, 1629234, 1810260, 2262825, 2715390, 3017100, 3258468, 4073085, 4525650, 5430780, 6788475, 8146170, 9051300, 13576950, 16292340, 20365425, 27153900, 40730850, 81461700]

約数ペア:

[(1, 81461700), (2, 40730850), (3, 27153900), (4, 20365425), (5, 16292340), (6, 13576950), (9, 9051300), (10, 8146170), (12, 6788475), (15, 5430780), (18, 4525650), (20, 4073085), (25, 3258468), (27, 3017100), (30, 2715390), (36, 2262825), (45, 1810260), (50, 1629234), (54, 1508550), (60, 1357695), (75, 1086156), (81, 1005700), (89, 915300), (90, 905130), (100, 814617), (108, 754275), (113, 720900), (135, 603420), (150, 543078), (162, 502850), (178, 457650), (180, 452565), (225, 362052), (226, 360450), (267, 305100), (270, 301710), (300, 271539), (324, 251425), (339, 240300), (356, 228825), (405, 201140), (445, 183060), (450, 181026), (452, 180225), (534, 152550), (540, 150855), (565, 144180), (675, 120684), (678, 120150), (801, 101700), (810, 100570), (890, 91530), (900, 90513), (1017, 80100), (1068, 76275), (1130, 72090), (1335, 61020), (1350, 60342), (1356, 60075), (1602, 50850), (1620, 50285), (1695, 48060), (1780, 45765), (2025, 40228), (2034, 40050), (2225, 36612), (2260, 36045), (2403, 33900), (2670, 30510), (2700, 30171), (2825, 28836), (3051, 26700), (3204, 25425), (3390, 24030), (4005, 20340), (4050, 20114), (4068, 20025), (4450, 18306), (4806, 16950), (5085, 16020), (5340, 15255), (5650, 14418), (6102, 13350), (6675, 12204), (6780, 12015), (7209, 11300), (8010, 10170), (8100, 10057), (8475, 9612), (8900, 9153)]