21370291180

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{263}}^1\times {\mathrm{461}}^1\times {\mathrm{1259}}^1$

素因数の和:1999

約数の個数: 96

約数和(自身を含む): 51636372480

約数和(自身を除く): 30266081300

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 263, 461, 526, 922, 1052, 1259, 1315, 1841, 1844, 2305, 2518, 2630, 3227, 3682, 4610, 5036, 5260, 6295, 6454, 7364, 8813, 9205, 9220, 12590, 12908, 16135, 17626, 18410, 25180, 32270, 35252, 36820, 44065, 64540, 88130, 121243, 176260, 242486, 331117, 484972, 580399, 606215, 662234, 848701, 1160798, 1212430, 1324468, 1655585, 1697402, 2317819, 2321596, 2424860, 2901995, 3311170, 3394804, 4062793, 4243505, 4635638, 5803990, 6622340, 8125586, 8487010, 9271276, 11589095, 11607980, 16251172, 16974020, 20313965, 23178190, 40627930, 46356380, 81255860, 152644937, 305289874, 610579748, 763224685, 1068514559, 1526449370, 2137029118, 3052898740, 4274058236, 5342572795, 10685145590, 21370291180]

約数ペア:

[(1, 21370291180), (2, 10685145590), (4, 5342572795), (5, 4274058236), (7, 3052898740), (10, 2137029118), (14, 1526449370), (20, 1068514559), (28, 763224685), (35, 610579748), (70, 305289874), (140, 152644937), (263, 81255860), (461, 46356380), (526, 40627930), (922, 23178190), (1052, 20313965), (1259, 16974020), (1315, 16251172), (1841, 11607980), (1844, 11589095), (2305, 9271276), (2518, 8487010), (2630, 8125586), (3227, 6622340), (3682, 5803990), (4610, 4635638), (5036, 4243505), (5260, 4062793), (6295, 3394804), (6454, 3311170), (7364, 2901995), (8813, 2424860), (9205, 2321596), (9220, 2317819), (12590, 1697402), (12908, 1655585), (16135, 1324468), (17626, 1212430), (18410, 1160798), (25180, 848701), (32270, 662234), (35252, 606215), (36820, 580399), (44065, 484972), (64540, 331117), (88130, 242486), (121243, 176260)]