19640700

素因数分解:

$2^2\times 3^2\times 5^2\times {\mathrm{139}}^1\times {\mathrm{157}}^1$

素因数の和:316

約数の個数: 108

約数和(自身を含む): 62400520

約数和(自身を除く): 42759820

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 25, 30, 36, 45, 50, 60, 75, 90, 100, 139, 150, 157, 180, 225, 278, 300, 314, 417, 450, 471, 556, 628, 695, 785, 834, 900, 942, 1251, 1390, 1413, 1570, 1668, 1884, 2085, 2355, 2502, 2780, 2826, 3140, 3475, 3925, 4170, 4710, 5004, 5652, 6255, 6950, 7065, 7850, 8340, 9420, 10425, 11775, 12510, 13900, 14130, 15700, 20850, 21823, 23550, 25020, 28260, 31275, 35325, 41700, 43646, 47100, 62550, 65469, 70650, 87292, 109115, 125100, 130938, 141300, 196407, 218230, 261876, 327345, 392814, 436460, 545575, 654690, 785628, 982035, 1091150, 1309380, 1636725, 1964070, 2182300, 3273450, 3928140, 4910175, 6546900, 9820350, 19640700]

約数ペア:

[(1, 19640700), (2, 9820350), (3, 6546900), (4, 4910175), (5, 3928140), (6, 3273450), (9, 2182300), (10, 1964070), (12, 1636725), (15, 1309380), (18, 1091150), (20, 982035), (25, 785628), (30, 654690), (36, 545575), (45, 436460), (50, 392814), (60, 327345), (75, 261876), (90, 218230), (100, 196407), (139, 141300), (150, 130938), (157, 125100), (180, 109115), (225, 87292), (278, 70650), (300, 65469), (314, 62550), (417, 47100), (450, 43646), (471, 41700), (556, 35325), (628, 31275), (695, 28260), (785, 25020), (834, 23550), (900, 21823), (942, 20850), (1251, 15700), (1390, 14130), (1413, 13900), (1570, 12510), (1668, 11775), (1884, 10425), (2085, 9420), (2355, 8340), (2502, 7850), (2780, 7065), (2826, 6950), (3140, 6255), (3475, 5652), (3925, 5004), (4170, 4710)]