28273920

素因数分解:

$2^8\times 3^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{199}}^1$

素因数の和:260

約数の個数: 144

約数和(自身を含む): 93206400

約数和(自身を除く): 64932480

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 37, 40, 48, 60, 64, 74, 80, 96, 111, 120, 128, 148, 160, 185, 192, 199, 222, 240, 256, 296, 320, 370, 384, 398, 444, 480, 555, 592, 597, 640, 740, 768, 796, 888, 960, 995, 1110, 1184, 1194, 1280, 1480, 1592, 1776, 1920, 1990, 2220, 2368, 2388, 2960, 2985, 3184, 3552, 3840, 3980, 4440, 4736, 4776, 5920, 5970, 6368, 7104, 7363, 7960, 8880, 9472, 9552, 11840, 11940, 12736, 14208, 14726, 15920, 17760, 19104, 22089, 23680, 23880, 25472, 28416, 29452, 31840, 35520, 36815, 38208, 44178, 47360, 47760, 50944, 58904, 63680, 71040, 73630, 76416, 88356, 95520, 110445, 117808, 127360, 142080, 147260, 152832, 176712, 191040, 220890, 235616, 254720, 294520, 353424, 382080, 441780, 471232, 589040, 706848, 764160, 883560, 942464, 1178080, 1413696, 1767120, 1884928, 2356160, 2827392, 3534240, 4712320, 5654784, 7068480, 9424640, 14136960, 28273920]

約数ペア:

[(1, 28273920), (2, 14136960), (3, 9424640), (4, 7068480), (5, 5654784), (6, 4712320), (8, 3534240), (10, 2827392), (12, 2356160), (15, 1884928), (16, 1767120), (20, 1413696), (24, 1178080), (30, 942464), (32, 883560), (37, 764160), (40, 706848), (48, 589040), (60, 471232), (64, 441780), (74, 382080), (80, 353424), (96, 294520), (111, 254720), (120, 235616), (128, 220890), (148, 191040), (160, 176712), (185, 152832), (192, 147260), (199, 142080), (222, 127360), (240, 117808), (256, 110445), (296, 95520), (320, 88356), (370, 76416), (384, 73630), (398, 71040), (444, 63680), (480, 58904), (555, 50944), (592, 47760), (597, 47360), (640, 44178), (740, 38208), (768, 36815), (796, 35520), (888, 31840), (960, 29452), (995, 28416), (1110, 25472), (1184, 23880), (1194, 23680), (1280, 22089), (1480, 19104), (1592, 17760), (1776, 15920), (1920, 14726), (1990, 14208), (2220, 12736), (2368, 11940), (2388, 11840), (2960, 9552), (2985, 9472), (3184, 8880), (3552, 7960), (3840, 7363), (3980, 7104), (4440, 6368), (4736, 5970), (4776, 5920)]