2155111980

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{5131219}}^1$

素因数の和:5131238

約数の個数: 48

約数和(自身を含む): 6896359680

約数和(自身を除く): 4741247700

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 5131219, 10262438, 15393657, 20524876, 25656095, 30787314, 35918533, 51312190, 61574628, 71837066, 76968285, 102624380, 107755599, 143674132, 153936570, 179592665, 215511198, 307873140, 359185330, 431022396, 538777995, 718370660, 1077555990, 2155111980]

約数ペア:

[(1, 2155111980), (2, 1077555990), (3, 718370660), (4, 538777995), (5, 431022396), (6, 359185330), (7, 307873140), (10, 215511198), (12, 179592665), (14, 153936570), (15, 143674132), (20, 107755599), (21, 102624380), (28, 76968285), (30, 71837066), (35, 61574628), (42, 51312190), (60, 35918533), (70, 30787314), (84, 25656095), (105, 20524876), (140, 15393657), (210, 10262438), (420, 5131219)]