19988550

素因数分解:

$2^1\times 3^2\times 5^2\times {\mathrm{43}}^1\times {\mathrm{1033}}^1$

素因数の和:1094

約数の個数: 72

約数和(自身を含む): 55004664

約数和(自身を除く): 35016114

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 25, 30, 43, 45, 50, 75, 86, 90, 129, 150, 215, 225, 258, 387, 430, 450, 645, 774, 1033, 1075, 1290, 1935, 2066, 2150, 3099, 3225, 3870, 5165, 6198, 6450, 9297, 9675, 10330, 15495, 18594, 19350, 25825, 30990, 44419, 46485, 51650, 77475, 88838, 92970, 133257, 154950, 222095, 232425, 266514, 399771, 444190, 464850, 666285, 799542, 1110475, 1332570, 1998855, 2220950, 3331425, 3997710, 6662850, 9994275, 19988550]

約数ペア:

[(1, 19988550), (2, 9994275), (3, 6662850), (5, 3997710), (6, 3331425), (9, 2220950), (10, 1998855), (15, 1332570), (18, 1110475), (25, 799542), (30, 666285), (43, 464850), (45, 444190), (50, 399771), (75, 266514), (86, 232425), (90, 222095), (129, 154950), (150, 133257), (215, 92970), (225, 88838), (258, 77475), (387, 51650), (430, 46485), (450, 44419), (645, 30990), (774, 25825), (1033, 19350), (1075, 18594), (1290, 15495), (1935, 10330), (2066, 9675), (2150, 9297), (3099, 6450), (3225, 6198), (3870, 5165)]