205320440

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{271}}^1$

素因数の和:373

約数の個数: 128

約数和(自身を含む): 526417920

約数和(自身を除く): 321097480

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 31, 40, 47, 52, 62, 65, 94, 104, 124, 130, 155, 188, 235, 248, 260, 271, 310, 376, 403, 470, 520, 542, 611, 620, 806, 940, 1084, 1222, 1240, 1355, 1457, 1612, 1880, 2015, 2168, 2444, 2710, 2914, 3055, 3224, 3523, 4030, 4888, 5420, 5828, 6110, 7046, 7285, 8060, 8401, 10840, 11656, 12220, 12737, 14092, 14570, 16120, 16802, 17615, 18941, 24440, 25474, 28184, 29140, 33604, 35230, 37882, 42005, 50948, 58280, 63685, 67208, 70460, 75764, 84010, 94705, 101896, 109213, 127370, 140920, 151528, 165581, 168020, 189410, 218426, 254740, 331162, 336040, 378820, 394847, 436852, 509480, 546065, 662324, 757640, 789694, 827905, 873704, 1092130, 1324648, 1579388, 1655810, 1974235, 2184260, 3158776, 3311620, 3948470, 4368520, 5133011, 6623240, 7896940, 10266022, 15793880, 20532044, 25665055, 41064088, 51330110, 102660220, 205320440]

約数ペア:

[(1, 205320440), (2, 102660220), (4, 51330110), (5, 41064088), (8, 25665055), (10, 20532044), (13, 15793880), (20, 10266022), (26, 7896940), (31, 6623240), (40, 5133011), (47, 4368520), (52, 3948470), (62, 3311620), (65, 3158776), (94, 2184260), (104, 1974235), (124, 1655810), (130, 1579388), (155, 1324648), (188, 1092130), (235, 873704), (248, 827905), (260, 789694), (271, 757640), (310, 662324), (376, 546065), (403, 509480), (470, 436852), (520, 394847), (542, 378820), (611, 336040), (620, 331162), (806, 254740), (940, 218426), (1084, 189410), (1222, 168020), (1240, 165581), (1355, 151528), (1457, 140920), (1612, 127370), (1880, 109213), (2015, 101896), (2168, 94705), (2444, 84010), (2710, 75764), (2914, 70460), (3055, 67208), (3224, 63685), (3523, 58280), (4030, 50948), (4888, 42005), (5420, 37882), (5828, 35230), (6110, 33604), (7046, 29140), (7285, 28184), (8060, 25474), (8401, 24440), (10840, 18941), (11656, 17615), (12220, 16802), (12737, 16120), (14092, 14570)]