20791868520

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{83}}^1\times {\mathrm{97}}^1\times {\mathrm{21521}}^1$

素因数の和:21715

約数の個数: 128

約数和(自身を含む): 63780877440

約数和(自身を除く): 42989008920

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 83, 97, 120, 166, 194, 249, 291, 332, 388, 415, 485, 498, 582, 664, 776, 830, 970, 996, 1164, 1245, 1455, 1660, 1940, 1992, 2328, 2490, 2910, 3320, 3880, 4980, 5820, 8051, 9960, 11640, 16102, 21521, 24153, 32204, 40255, 43042, 48306, 64408, 64563, 80510, 86084, 96612, 107605, 120765, 129126, 161020, 172168, 193224, 215210, 241530, 258252, 322040, 322815, 430420, 483060, 516504, 645630, 860840, 966120, 1291260, 1786243, 2087537, 2582520, 3572486, 4175074, 5358729, 6262611, 7144972, 8350148, 8931215, 10437685, 10717458, 12525222, 14289944, 16700296, 17862430, 20875370, 21434916, 25050444, 26793645, 31313055, 35724860, 41750740, 42869832, 50100888, 53587290, 62626110, 71449720, 83501480, 107174580, 125252220, 173265571, 214349160, 250504440, 346531142, 519796713, 693062284, 866327855, 1039593426, 1386124568, 1732655710, 2079186852, 2598983565, 3465311420, 4158373704, 5197967130, 6930622840, 10395934260, 20791868520]

約数ペア:

[(1, 20791868520), (2, 10395934260), (3, 6930622840), (4, 5197967130), (5, 4158373704), (6, 3465311420), (8, 2598983565), (10, 2079186852), (12, 1732655710), (15, 1386124568), (20, 1039593426), (24, 866327855), (30, 693062284), (40, 519796713), (60, 346531142), (83, 250504440), (97, 214349160), (120, 173265571), (166, 125252220), (194, 107174580), (249, 83501480), (291, 71449720), (332, 62626110), (388, 53587290), (415, 50100888), (485, 42869832), (498, 41750740), (582, 35724860), (664, 31313055), (776, 26793645), (830, 25050444), (970, 21434916), (996, 20875370), (1164, 17862430), (1245, 16700296), (1455, 14289944), (1660, 12525222), (1940, 10717458), (1992, 10437685), (2328, 8931215), (2490, 8350148), (2910, 7144972), (3320, 6262611), (3880, 5358729), (4980, 4175074), (5820, 3572486), (8051, 2582520), (9960, 2087537), (11640, 1786243), (16102, 1291260), (21521, 966120), (24153, 860840), (32204, 645630), (40255, 516504), (43042, 483060), (48306, 430420), (64408, 322815), (64563, 322040), (80510, 258252), (86084, 241530), (96612, 215210), (107605, 193224), (120765, 172168), (129126, 161020)]