91780000

素因数分解:

$2^5\times 5^4\times {\mathrm{13}}^1\times {\mathrm{353}}^1$

素因数の和:396

約数の個数: 120

約数和(自身を含む): 243850068

約数和(自身を除く): 152070068

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 25, 26, 32, 40, 50, 52, 65, 80, 100, 104, 125, 130, 160, 200, 208, 250, 260, 325, 353, 400, 416, 500, 520, 625, 650, 706, 800, 1000, 1040, 1250, 1300, 1412, 1625, 1765, 2000, 2080, 2500, 2600, 2824, 3250, 3530, 4000, 4589, 5000, 5200, 5648, 6500, 7060, 8125, 8825, 9178, 10000, 10400, 11296, 13000, 14120, 16250, 17650, 18356, 20000, 22945, 26000, 28240, 32500, 35300, 36712, 44125, 45890, 52000, 56480, 65000, 70600, 73424, 88250, 91780, 114725, 130000, 141200, 146848, 176500, 183560, 220625, 229450, 260000, 282400, 353000, 367120, 441250, 458900, 573625, 706000, 734240, 882500, 917800, 1147250, 1412000, 1765000, 1835600, 2294500, 2868125, 3530000, 3671200, 4589000, 5736250, 7060000, 9178000, 11472500, 18356000, 22945000, 45890000, 91780000]

約数ペア:

[(1, 91780000), (2, 45890000), (4, 22945000), (5, 18356000), (8, 11472500), (10, 9178000), (13, 7060000), (16, 5736250), (20, 4589000), (25, 3671200), (26, 3530000), (32, 2868125), (40, 2294500), (50, 1835600), (52, 1765000), (65, 1412000), (80, 1147250), (100, 917800), (104, 882500), (125, 734240), (130, 706000), (160, 573625), (200, 458900), (208, 441250), (250, 367120), (260, 353000), (325, 282400), (353, 260000), (400, 229450), (416, 220625), (500, 183560), (520, 176500), (625, 146848), (650, 141200), (706, 130000), (800, 114725), (1000, 91780), (1040, 88250), (1250, 73424), (1300, 70600), (1412, 65000), (1625, 56480), (1765, 52000), (2000, 45890), (2080, 44125), (2500, 36712), (2600, 35300), (2824, 32500), (3250, 28240), (3530, 26000), (4000, 22945), (4589, 20000), (5000, 18356), (5200, 17650), (5648, 16250), (6500, 14120), (7060, 13000), (8125, 11296), (8825, 10400), (9178, 10000)]