81745650

素因数分解:

$2^1\times 3^2\times 5^2\times 7^1\times {\mathrm{25951}}^1$

素因数の和:25976

約数の個数: 72

約数和(自身を含む): 251007744

約数和(自身を除く): 169262094

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 25, 30, 35, 42, 45, 50, 63, 70, 75, 90, 105, 126, 150, 175, 210, 225, 315, 350, 450, 525, 630, 1050, 1575, 3150, 25951, 51902, 77853, 129755, 155706, 181657, 233559, 259510, 363314, 389265, 467118, 544971, 648775, 778530, 908285, 1089942, 1167795, 1297550, 1634913, 1816570, 1946325, 2335590, 2724855, 3269826, 3892650, 4541425, 5449710, 5838975, 8174565, 9082850, 11677950, 13624275, 16349130, 27248550, 40872825, 81745650]

約数ペア:

[(1, 81745650), (2, 40872825), (3, 27248550), (5, 16349130), (6, 13624275), (7, 11677950), (9, 9082850), (10, 8174565), (14, 5838975), (15, 5449710), (18, 4541425), (21, 3892650), (25, 3269826), (30, 2724855), (35, 2335590), (42, 1946325), (45, 1816570), (50, 1634913), (63, 1297550), (70, 1167795), (75, 1089942), (90, 908285), (105, 778530), (126, 648775), (150, 544971), (175, 467118), (210, 389265), (225, 363314), (315, 259510), (350, 233559), (450, 181657), (525, 155706), (630, 129755), (1050, 77853), (1575, 51902), (3150, 25951)]