1260609280

素因数分解:

$2^8\times 5^1\times 7^2\times {\mathrm{101}}^1\times {\mathrm{199}}^1$

素因数の和:335

約数の個数: 216

約数和(自身を含む): 3565144800

約数和(自身を除く): 2304535520

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 49, 56, 64, 70, 80, 98, 101, 112, 128, 140, 160, 196, 199, 202, 224, 245, 256, 280, 320, 392, 398, 404, 448, 490, 505, 560, 640, 707, 784, 796, 808, 896, 980, 995, 1010, 1120, 1280, 1393, 1414, 1568, 1592, 1616, 1792, 1960, 1990, 2020, 2240, 2786, 2828, 3136, 3184, 3232, 3535, 3920, 3980, 4040, 4480, 4949, 5572, 5656, 6272, 6368, 6464, 6965, 7070, 7840, 7960, 8080, 8960, 9751, 9898, 11144, 11312, 12544, 12736, 12928, 13930, 14140, 15680, 15920, 16160, 19502, 19796, 20099, 22288, 22624, 24745, 25472, 25856, 27860, 28280, 31360, 31840, 32320, 39004, 39592, 40198, 44576, 45248, 48755, 49490, 50944, 55720, 56560, 62720, 63680, 64640, 78008, 79184, 80396, 89152, 90496, 97510, 98980, 100495, 111440, 113120, 127360, 129280, 140693, 156016, 158368, 160792, 178304, 180992, 195020, 197960, 200990, 222880, 226240, 254720, 281386, 312032, 316736, 321584, 356608, 390040, 395920, 401980, 445760, 452480, 562772, 624064, 633472, 643168, 703465, 780080, 791840, 803960, 891520, 904960, 984851, 1125544, 1248128, 1266944, 1286336, 1406930, 1560160, 1583680, 1607920, 1783040, 1969702, 2251088, 2496256, 2572672, 2813860, 3120320, 3167360, 3215840, 3939404, 4502176, 4924255, 5145344, 5627720, 6240640, 6334720, 6431680, 7878808, 9004352, 9848510, 11255440, 12481280, 12863360, 15757616, 18008704, 19697020, 22510880, 25726720, 31515232, 36017408, 39394040, 45021760, 63030464, 78788080, 90043520, 126060928, 157576160, 180087040, 252121856, 315152320, 630304640, 1260609280]

約数ペア:

[(1, 1260609280), (2, 630304640), (4, 315152320), (5, 252121856), (7, 180087040), (8, 157576160), (10, 126060928), (14, 90043520), (16, 78788080), (20, 63030464), (28, 45021760), (32, 39394040), (35, 36017408), (40, 31515232), (49, 25726720), (56, 22510880), (64, 19697020), (70, 18008704), (80, 15757616), (98, 12863360), (101, 12481280), (112, 11255440), (128, 9848510), (140, 9004352), (160, 7878808), (196, 6431680), (199, 6334720), (202, 6240640), (224, 5627720), (245, 5145344), (256, 4924255), (280, 4502176), (320, 3939404), (392, 3215840), (398, 3167360), (404, 3120320), (448, 2813860), (490, 2572672), (505, 2496256), (560, 2251088), (640, 1969702), (707, 1783040), (784, 1607920), (796, 1583680), (808, 1560160), (896, 1406930), (980, 1286336), (995, 1266944), (1010, 1248128), (1120, 1125544), (1280, 984851), (1393, 904960), (1414, 891520), (1568, 803960), (1592, 791840), (1616, 780080), (1792, 703465), (1960, 643168), (1990, 633472), (2020, 624064), (2240, 562772), (2786, 452480), (2828, 445760), (3136, 401980), (3184, 395920), (3232, 390040), (3535, 356608), (3920, 321584), (3980, 316736), (4040, 312032), (4480, 281386), (4949, 254720), (5572, 226240), (5656, 222880), (6272, 200990), (6368, 197960), (6464, 195020), (6965, 180992), (7070, 178304), (7840, 160792), (7960, 158368), (8080, 156016), (8960, 140693), (9751, 129280), (9898, 127360), (11144, 113120), (11312, 111440), (12544, 100495), (12736, 98980), (12928, 97510), (13930, 90496), (14140, 89152), (15680, 80396), (15920, 79184), (16160, 78008), (19502, 64640), (19796, 63680), (20099, 62720), (22288, 56560), (22624, 55720), (24745, 50944), (25472, 49490), (25856, 48755), (27860, 45248), (28280, 44576), (31360, 40198), (31840, 39592), (32320, 39004)]