78520000

素因数分解:

$2^6\times 5^4\times {\mathrm{13}}^1\times {\mathrm{151}}^1$

素因数の和:196

約数の個数: 140

約数和(自身を含む): 211069936

約数和(自身を除く): 132549936

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 25, 26, 32, 40, 50, 52, 64, 65, 80, 100, 104, 125, 130, 151, 160, 200, 208, 250, 260, 302, 320, 325, 400, 416, 500, 520, 604, 625, 650, 755, 800, 832, 1000, 1040, 1208, 1250, 1300, 1510, 1600, 1625, 1963, 2000, 2080, 2416, 2500, 2600, 3020, 3250, 3775, 3926, 4000, 4160, 4832, 5000, 5200, 6040, 6500, 7550, 7852, 8000, 8125, 9664, 9815, 10000, 10400, 12080, 13000, 15100, 15704, 16250, 18875, 19630, 20000, 20800, 24160, 26000, 30200, 31408, 32500, 37750, 39260, 40000, 48320, 49075, 52000, 60400, 62816, 65000, 75500, 78520, 94375, 98150, 104000, 120800, 125632, 130000, 151000, 157040, 188750, 196300, 241600, 245375, 260000, 302000, 314080, 377500, 392600, 490750, 520000, 604000, 628160, 755000, 785200, 981500, 1208000, 1226875, 1510000, 1570400, 1963000, 2453750, 3020000, 3140800, 3926000, 4907500, 6040000, 7852000, 9815000, 15704000, 19630000, 39260000, 78520000]

約数ペア:

[(1, 78520000), (2, 39260000), (4, 19630000), (5, 15704000), (8, 9815000), (10, 7852000), (13, 6040000), (16, 4907500), (20, 3926000), (25, 3140800), (26, 3020000), (32, 2453750), (40, 1963000), (50, 1570400), (52, 1510000), (64, 1226875), (65, 1208000), (80, 981500), (100, 785200), (104, 755000), (125, 628160), (130, 604000), (151, 520000), (160, 490750), (200, 392600), (208, 377500), (250, 314080), (260, 302000), (302, 260000), (320, 245375), (325, 241600), (400, 196300), (416, 188750), (500, 157040), (520, 151000), (604, 130000), (625, 125632), (650, 120800), (755, 104000), (800, 98150), (832, 94375), (1000, 78520), (1040, 75500), (1208, 65000), (1250, 62816), (1300, 60400), (1510, 52000), (1600, 49075), (1625, 48320), (1963, 40000), (2000, 39260), (2080, 37750), (2416, 32500), (2500, 31408), (2600, 30200), (3020, 26000), (3250, 24160), (3775, 20800), (3926, 20000), (4000, 19630), (4160, 18875), (4832, 16250), (5000, 15704), (5200, 15100), (6040, 13000), (6500, 12080), (7550, 10400), (7852, 10000), (8000, 9815), (8125, 9664)]