251036720

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{79}}^1\times {\mathrm{157}}^1$

素因数の和:283

約数の個数: 160

約数和(自身を含む): 677099520

約数和(自身を除く): 426062800

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 23, 40, 44, 46, 55, 79, 80, 88, 92, 110, 115, 157, 158, 176, 184, 220, 230, 253, 314, 316, 368, 395, 440, 460, 506, 628, 632, 785, 790, 869, 880, 920, 1012, 1256, 1264, 1265, 1570, 1580, 1727, 1738, 1817, 1840, 2024, 2512, 2530, 3140, 3160, 3454, 3476, 3611, 3634, 4048, 4345, 5060, 6280, 6320, 6908, 6952, 7222, 7268, 8635, 8690, 9085, 10120, 12403, 12560, 13816, 13904, 14444, 14536, 17270, 17380, 18055, 18170, 19987, 20240, 24806, 27632, 28888, 29072, 34540, 34760, 36110, 36340, 39721, 39974, 49612, 57776, 62015, 69080, 69520, 72220, 72680, 79442, 79948, 99224, 99935, 124030, 136433, 138160, 144440, 145360, 158884, 159896, 198448, 198605, 199870, 248060, 272866, 285269, 288880, 317768, 319792, 397210, 399740, 496120, 545732, 570538, 635536, 682165, 794420, 799480, 992240, 1091464, 1141076, 1364330, 1426345, 1588840, 1598960, 2182928, 2282152, 2728660, 2852690, 3137959, 3177680, 4564304, 5457320, 5705380, 6275918, 10914640, 11410760, 12551836, 15689795, 22821520, 25103672, 31379590, 50207344, 62759180, 125518360, 251036720]

約数ペア:

[(1, 251036720), (2, 125518360), (4, 62759180), (5, 50207344), (8, 31379590), (10, 25103672), (11, 22821520), (16, 15689795), (20, 12551836), (22, 11410760), (23, 10914640), (40, 6275918), (44, 5705380), (46, 5457320), (55, 4564304), (79, 3177680), (80, 3137959), (88, 2852690), (92, 2728660), (110, 2282152), (115, 2182928), (157, 1598960), (158, 1588840), (176, 1426345), (184, 1364330), (220, 1141076), (230, 1091464), (253, 992240), (314, 799480), (316, 794420), (368, 682165), (395, 635536), (440, 570538), (460, 545732), (506, 496120), (628, 399740), (632, 397210), (785, 319792), (790, 317768), (869, 288880), (880, 285269), (920, 272866), (1012, 248060), (1256, 199870), (1264, 198605), (1265, 198448), (1570, 159896), (1580, 158884), (1727, 145360), (1738, 144440), (1817, 138160), (1840, 136433), (2024, 124030), (2512, 99935), (2530, 99224), (3140, 79948), (3160, 79442), (3454, 72680), (3476, 72220), (3611, 69520), (3634, 69080), (4048, 62015), (4345, 57776), (5060, 49612), (6280, 39974), (6320, 39721), (6908, 36340), (6952, 36110), (7222, 34760), (7268, 34540), (8635, 29072), (8690, 28888), (9085, 27632), (10120, 24806), (12403, 20240), (12560, 19987), (13816, 18170), (13904, 18055), (14444, 17380), (14536, 17270)]