18904950

素因数分解:

$2^1\times 3^2\times 5^2\times {\mathrm{43}}^1\times {\mathrm{977}}^1$

素因数の和:1038

約数の個数: 72

約数和(自身を含む): 52025688

約数和(自身を除く): 33120738

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, 977, 1075, 1290, 1935, 1954, 2150, 2931, 3225, 3870, 4885, 5862, 6450, 8793, 9675, 9770, 14655, 17586, 19350, 24425, 29310, 42011, 43965, 48850, 73275, 84022, 87930, 126033, 146550, 210055, 219825, 252066, 378099, 420110, 439650, 630165, 756198, 1050275, 1260330, 1890495, 2100550, 3150825, 3780990, 6301650, 9452475, 18904950]

約数ペア:

[(1, 18904950), (2, 9452475), (3, 6301650), (5, 3780990), (6, 3150825), (9, 2100550), (10, 1890495), (15, 1260330), (18, 1050275), (25, 756198), (30, 630165), (43, 439650), (45, 420110), (50, 378099), (75, 252066), (86, 219825), (90, 210055), (129, 146550), (150, 126033), (215, 87930), (225, 84022), (258, 73275), (387, 48850), (430, 43965), (450, 42011), (645, 29310), (774, 24425), (977, 19350), (1075, 17586), (1290, 14655), (1935, 9770), (1954, 9675), (2150, 8793), (2931, 6450), (3225, 5862), (3870, 4885)]