2516220

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{1997}}^1$

素因数の和:2019

約数の個数: 72

約数和(自身を含む): 8727264

約数和(自身を除く): 6211044

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 140, 180, 210, 252, 315, 420, 630, 1260, 1997, 3994, 5991, 7988, 9985, 11982, 13979, 17973, 19970, 23964, 27958, 29955, 35946, 39940, 41937, 55916, 59910, 69895, 71892, 83874, 89865, 119820, 125811, 139790, 167748, 179730, 209685, 251622, 279580, 359460, 419370, 503244, 629055, 838740, 1258110, 2516220]

約数ペア:

[(1, 2516220), (2, 1258110), (3, 838740), (4, 629055), (5, 503244), (6, 419370), (7, 359460), (9, 279580), (10, 251622), (12, 209685), (14, 179730), (15, 167748), (18, 139790), (20, 125811), (21, 119820), (28, 89865), (30, 83874), (35, 71892), (36, 69895), (42, 59910), (45, 55916), (60, 41937), (63, 39940), (70, 35946), (84, 29955), (90, 27958), (105, 23964), (126, 19970), (140, 17973), (180, 13979), (210, 11982), (252, 9985), (315, 7988), (420, 5991), (630, 3994), (1260, 1997)]