1287910000

素因数分解:

$2^4\times 5^4\times {\mathrm{13}}^1\times {\mathrm{9907}}^1$

素因数の和:9948

約数の個数: 100

約数和(自身を含む): 3358356232

約数和(自身を除く): 2070446232

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 25, 26, 40, 50, 52, 65, 80, 100, 104, 125, 130, 200, 208, 250, 260, 325, 400, 500, 520, 625, 650, 1000, 1040, 1250, 1300, 1625, 2000, 2500, 2600, 3250, 5000, 5200, 6500, 8125, 9907, 10000, 13000, 16250, 19814, 26000, 32500, 39628, 49535, 65000, 79256, 99070, 128791, 130000, 158512, 198140, 247675, 257582, 396280, 495350, 515164, 643955, 792560, 990700, 1030328, 1238375, 1287910, 1981400, 2060656, 2476750, 2575820, 3219775, 3962800, 4953500, 5151640, 6191875, 6439550, 9907000, 10303280, 12383750, 12879100, 16098875, 19814000, 24767500, 25758200, 32197750, 49535000, 51516400, 64395500, 80494375, 99070000, 128791000, 160988750, 257582000, 321977500, 643955000, 1287910000]

約数ペア:

[(1, 1287910000), (2, 643955000), (4, 321977500), (5, 257582000), (8, 160988750), (10, 128791000), (13, 99070000), (16, 80494375), (20, 64395500), (25, 51516400), (26, 49535000), (40, 32197750), (50, 25758200), (52, 24767500), (65, 19814000), (80, 16098875), (100, 12879100), (104, 12383750), (125, 10303280), (130, 9907000), (200, 6439550), (208, 6191875), (250, 5151640), (260, 4953500), (325, 3962800), (400, 3219775), (500, 2575820), (520, 2476750), (625, 2060656), (650, 1981400), (1000, 1287910), (1040, 1238375), (1250, 1030328), (1300, 990700), (1625, 792560), (2000, 643955), (2500, 515164), (2600, 495350), (3250, 396280), (5000, 257582), (5200, 247675), (6500, 198140), (8125, 158512), (9907, 130000), (10000, 128791), (13000, 99070), (16250, 79256), (19814, 65000), (26000, 49535), (32500, 39628)]