648045010

素因数分解:

$2^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{271}}^1\times {\mathrm{281}}^1$

素因数の和:619

約数の個数: 64

約数和(自身を含む): 1259172864

約数和(自身を除く): 611127854

約数列:

[1, 2, 5, 10, 23, 37, 46, 74, 115, 185, 230, 271, 281, 370, 542, 562, 851, 1355, 1405, 1702, 2710, 2810, 4255, 6233, 6463, 8510, 10027, 10397, 12466, 12926, 20054, 20794, 31165, 32315, 50135, 51985, 62330, 64630, 76151, 100270, 103970, 152302, 230621, 239131, 380755, 461242, 478262, 761510, 1153105, 1195655, 1751473, 2306210, 2391310, 2817587, 3502946, 5635174, 8757365, 14087935, 17514730, 28175870, 64804501, 129609002, 324022505, 648045010]

約数ペア:

[(1, 648045010), (2, 324022505), (5, 129609002), (10, 64804501), (23, 28175870), (37, 17514730), (46, 14087935), (74, 8757365), (115, 5635174), (185, 3502946), (230, 2817587), (271, 2391310), (281, 2306210), (370, 1751473), (542, 1195655), (562, 1153105), (851, 761510), (1355, 478262), (1405, 461242), (1702, 380755), (2710, 239131), (2810, 230621), (4255, 152302), (6233, 103970), (6463, 100270), (8510, 76151), (10027, 64630), (10397, 62330), (12466, 51985), (12926, 50135), (20054, 32315), (20794, 31165)]