20083970

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{103}}^1$

素因数の和:195

約数の個数: 64

約数和(自身を含む): 40974336

約数和(自身を除く): 20890366

約数列:

[1, 2, 5, 10, 17, 31, 34, 37, 62, 74, 85, 103, 155, 170, 185, 206, 310, 370, 515, 527, 629, 1030, 1054, 1147, 1258, 1751, 2294, 2635, 3145, 3193, 3502, 3811, 5270, 5735, 6290, 6386, 7622, 8755, 11470, 15965, 17510, 19055, 19499, 31930, 38110, 38998, 54281, 64787, 97495, 108562, 118141, 129574, 194990, 236282, 271405, 323935, 542810, 590705, 647870, 1181410, 2008397, 4016794, 10041985, 20083970]

約数ペア:

[(1, 20083970), (2, 10041985), (5, 4016794), (10, 2008397), (17, 1181410), (31, 647870), (34, 590705), (37, 542810), (62, 323935), (74, 271405), (85, 236282), (103, 194990), (155, 129574), (170, 118141), (185, 108562), (206, 97495), (310, 64787), (370, 54281), (515, 38998), (527, 38110), (629, 31930), (1030, 19499), (1054, 19055), (1147, 17510), (1258, 15965), (1751, 11470), (2294, 8755), (2635, 7622), (3145, 6386), (3193, 6290), (3502, 5735), (3811, 5270)]