400392320

素因数分解:

$2^7\times 5^1\times {\mathrm{19}}^2\times {\mathrm{1733}}^1$

素因数の和:1790

約数の個数: 96

約数和(自身を含む): 1010800620

約数和(自身を除く): 610408300

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 64, 76, 80, 95, 128, 152, 160, 190, 304, 320, 361, 380, 608, 640, 722, 760, 1216, 1444, 1520, 1733, 1805, 2432, 2888, 3040, 3466, 3610, 5776, 6080, 6932, 7220, 8665, 11552, 12160, 13864, 14440, 17330, 23104, 27728, 28880, 32927, 34660, 46208, 55456, 57760, 65854, 69320, 110912, 115520, 131708, 138640, 164635, 221824, 231040, 263416, 277280, 329270, 526832, 554560, 625613, 658540, 1053664, 1109120, 1251226, 1317080, 2107328, 2502452, 2634160, 3128065, 4214656, 5004904, 5268320, 6256130, 10009808, 10536640, 12512260, 20019616, 21073280, 25024520, 40039232, 50049040, 80078464, 100098080, 200196160, 400392320]

約数ペア:

[(1, 400392320), (2, 200196160), (4, 100098080), (5, 80078464), (8, 50049040), (10, 40039232), (16, 25024520), (19, 21073280), (20, 20019616), (32, 12512260), (38, 10536640), (40, 10009808), (64, 6256130), (76, 5268320), (80, 5004904), (95, 4214656), (128, 3128065), (152, 2634160), (160, 2502452), (190, 2107328), (304, 1317080), (320, 1251226), (361, 1109120), (380, 1053664), (608, 658540), (640, 625613), (722, 554560), (760, 526832), (1216, 329270), (1444, 277280), (1520, 263416), (1733, 231040), (1805, 221824), (2432, 164635), (2888, 138640), (3040, 131708), (3466, 115520), (3610, 110912), (5776, 69320), (6080, 65854), (6932, 57760), (7220, 55456), (8665, 46208), (11552, 34660), (12160, 32927), (13864, 28880), (14440, 27728), (17330, 23104)]