81689300

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{103}}^2$

素因数の和:238

約数の個数: 108

約数和(自身を含む): 223173216

約数和(自身を除く): 141483916

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 25, 28, 35, 44, 50, 55, 70, 77, 100, 103, 110, 140, 154, 175, 206, 220, 275, 308, 350, 385, 412, 515, 550, 700, 721, 770, 1030, 1100, 1133, 1442, 1540, 1925, 2060, 2266, 2575, 2884, 3605, 3850, 4532, 5150, 5665, 7210, 7700, 7931, 10300, 10609, 11330, 14420, 15862, 18025, 21218, 22660, 28325, 31724, 36050, 39655, 42436, 53045, 56650, 72100, 74263, 79310, 106090, 113300, 116699, 148526, 158620, 198275, 212180, 233398, 265225, 297052, 371315, 396550, 466796, 530450, 583495, 742630, 793100, 816893, 1060900, 1166990, 1485260, 1633786, 1856575, 2333980, 2917475, 3267572, 3713150, 4084465, 5834950, 7426300, 8168930, 11669900, 16337860, 20422325, 40844650, 81689300]

約数ペア:

[(1, 81689300), (2, 40844650), (4, 20422325), (5, 16337860), (7, 11669900), (10, 8168930), (11, 7426300), (14, 5834950), (20, 4084465), (22, 3713150), (25, 3267572), (28, 2917475), (35, 2333980), (44, 1856575), (50, 1633786), (55, 1485260), (70, 1166990), (77, 1060900), (100, 816893), (103, 793100), (110, 742630), (140, 583495), (154, 530450), (175, 466796), (206, 396550), (220, 371315), (275, 297052), (308, 265225), (350, 233398), (385, 212180), (412, 198275), (515, 158620), (550, 148526), (700, 116699), (721, 113300), (770, 106090), (1030, 79310), (1100, 74263), (1133, 72100), (1442, 56650), (1540, 53045), (1925, 42436), (2060, 39655), (2266, 36050), (2575, 31724), (2884, 28325), (3605, 22660), (3850, 21218), (4532, 18025), (5150, 15862), (5665, 14420), (7210, 11330), (7700, 10609), (7931, 10300)]