312751520

素因数分解:

$2^5\times 5^1\times {\mathrm{79}}^1\times {\mathrm{109}}^1\times {\mathrm{227}}^1$

素因数の和:430

約数の個数: 96

約数和(自身を含む): 758419200

約数和(自身を除く): 445667680

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 79, 80, 109, 158, 160, 218, 227, 316, 395, 436, 454, 545, 632, 790, 872, 908, 1090, 1135, 1264, 1580, 1744, 1816, 2180, 2270, 2528, 3160, 3488, 3632, 4360, 4540, 6320, 7264, 8611, 8720, 9080, 12640, 17222, 17440, 17933, 18160, 24743, 34444, 35866, 36320, 43055, 49486, 68888, 71732, 86110, 89665, 98972, 123715, 137776, 143464, 172220, 179330, 197944, 247430, 275552, 286928, 344440, 358660, 395888, 494860, 573856, 688880, 717320, 791776, 989720, 1377760, 1434640, 1954697, 1979440, 2869280, 3909394, 3958880, 7818788, 9773485, 15637576, 19546970, 31275152, 39093940, 62550304, 78187880, 156375760, 312751520]

約数ペア:

[(1, 312751520), (2, 156375760), (4, 78187880), (5, 62550304), (8, 39093940), (10, 31275152), (16, 19546970), (20, 15637576), (32, 9773485), (40, 7818788), (79, 3958880), (80, 3909394), (109, 2869280), (158, 1979440), (160, 1954697), (218, 1434640), (227, 1377760), (316, 989720), (395, 791776), (436, 717320), (454, 688880), (545, 573856), (632, 494860), (790, 395888), (872, 358660), (908, 344440), (1090, 286928), (1135, 275552), (1264, 247430), (1580, 197944), (1744, 179330), (1816, 172220), (2180, 143464), (2270, 137776), (2528, 123715), (3160, 98972), (3488, 89665), (3632, 86110), (4360, 71732), (4540, 68888), (6320, 49486), (7264, 43055), (8611, 36320), (8720, 35866), (9080, 34444), (12640, 24743), (17222, 18160), (17440, 17933)]