205597440

素因数分解:

$2^8\times 3^5\times 5^1\times {\mathrm{661}}^1$

素因数の和:697

約数の個数: 216

約数和(自身を含む): 738807888

約数和(自身を除く): 533210448

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 32, 36, 40, 45, 48, 54, 60, 64, 72, 80, 81, 90, 96, 108, 120, 128, 135, 144, 160, 162, 180, 192, 216, 240, 243, 256, 270, 288, 320, 324, 360, 384, 405, 432, 480, 486, 540, 576, 640, 648, 661, 720, 768, 810, 864, 960, 972, 1080, 1152, 1215, 1280, 1296, 1322, 1440, 1620, 1728, 1920, 1944, 1983, 2160, 2304, 2430, 2592, 2644, 2880, 3240, 3305, 3456, 3840, 3888, 3966, 4320, 4860, 5184, 5288, 5760, 5949, 6480, 6610, 6912, 7776, 7932, 8640, 9720, 9915, 10368, 10576, 11520, 11898, 12960, 13220, 15552, 15864, 17280, 17847, 19440, 19830, 20736, 21152, 23796, 25920, 26440, 29745, 31104, 31728, 34560, 35694, 38880, 39660, 42304, 47592, 51840, 52880, 53541, 59490, 62208, 63456, 71388, 77760, 79320, 84608, 89235, 95184, 103680, 105760, 107082, 118980, 126912, 142776, 155520, 158640, 160623, 169216, 178470, 190368, 211520, 214164, 237960, 253824, 267705, 285552, 311040, 317280, 321246, 356940, 380736, 423040, 428328, 475920, 507648, 535410, 571104, 634560, 642492, 713880, 761472, 803115, 846080, 856656, 951840, 1070820, 1142208, 1269120, 1284984, 1427760, 1522944, 1606230, 1713312, 1903680, 2141640, 2284416, 2538240, 2569968, 2855520, 3212460, 3426624, 3807360, 4283280, 4568832, 5139936, 5711040, 6424920, 6853248, 7614720, 8566560, 10279872, 11422080, 12849840, 13706496, 17133120, 20559744, 22844160, 25699680, 34266240, 41119488, 51399360, 68532480, 102798720, 205597440]

約数ペア:

[(1, 205597440), (2, 102798720), (3, 68532480), (4, 51399360), (5, 41119488), (6, 34266240), (8, 25699680), (9, 22844160), (10, 20559744), (12, 17133120), (15, 13706496), (16, 12849840), (18, 11422080), (20, 10279872), (24, 8566560), (27, 7614720), (30, 6853248), (32, 6424920), (36, 5711040), (40, 5139936), (45, 4568832), (48, 4283280), (54, 3807360), (60, 3426624), (64, 3212460), (72, 2855520), (80, 2569968), (81, 2538240), (90, 2284416), (96, 2141640), (108, 1903680), (120, 1713312), (128, 1606230), (135, 1522944), (144, 1427760), (160, 1284984), (162, 1269120), (180, 1142208), (192, 1070820), (216, 951840), (240, 856656), (243, 846080), (256, 803115), (270, 761472), (288, 713880), (320, 642492), (324, 634560), (360, 571104), (384, 535410), (405, 507648), (432, 475920), (480, 428328), (486, 423040), (540, 380736), (576, 356940), (640, 321246), (648, 317280), (661, 311040), (720, 285552), (768, 267705), (810, 253824), (864, 237960), (960, 214164), (972, 211520), (1080, 190368), (1152, 178470), (1215, 169216), (1280, 160623), (1296, 158640), (1322, 155520), (1440, 142776), (1620, 126912), (1728, 118980), (1920, 107082), (1944, 105760), (1983, 103680), (2160, 95184), (2304, 89235), (2430, 84608), (2592, 79320), (2644, 77760), (2880, 71388), (3240, 63456), (3305, 62208), (3456, 59490), (3840, 53541), (3888, 52880), (3966, 51840), (4320, 47592), (4860, 42304), (5184, 39660), (5288, 38880), (5760, 35694), (5949, 34560), (6480, 31728), (6610, 31104), (6912, 29745), (7776, 26440), (7932, 25920), (8640, 23796), (9720, 21152), (9915, 20736), (10368, 19830), (10576, 19440), (11520, 17847), (11898, 17280), (12960, 15864), (13220, 15552)]