20343108920

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{101}}^1\times {\mathrm{127}}^1\times {\mathrm{1279}}^1$

素因数の和:1549

約数の個数: 128

約数和(自身を含む): 48129638400

約数和(自身を除く): 27786529480

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 101, 124, 127, 155, 202, 248, 254, 310, 404, 505, 508, 620, 635, 808, 1010, 1016, 1240, 1270, 1279, 2020, 2540, 2558, 3131, 3937, 4040, 5080, 5116, 6262, 6395, 7874, 10232, 12524, 12790, 12827, 15655, 15748, 19685, 25048, 25580, 25654, 31310, 31496, 39370, 39649, 51160, 51308, 62620, 64135, 78740, 79298, 102616, 125240, 128270, 129179, 157480, 158596, 162433, 198245, 256540, 258358, 317192, 324866, 396490, 397637, 513080, 516716, 645895, 649732, 792980, 795274, 812165, 1033432, 1291790, 1299464, 1585960, 1590548, 1624330, 1988185, 2583580, 3181096, 3248660, 3976370, 4004549, 5035423, 5167160, 6497320, 7952740, 8009098, 10070846, 15905480, 16018196, 16405733, 20022745, 20141692, 25177115, 32036392, 32811466, 40045490, 40283384, 50354230, 65622932, 80090980, 82028665, 100708460, 131245864, 160181960, 164057330, 201416920, 328114660, 508577723, 656229320, 1017155446, 2034310892, 2542888615, 4068621784, 5085777230, 10171554460, 20343108920]

約数ペア:

[(1, 20343108920), (2, 10171554460), (4, 5085777230), (5, 4068621784), (8, 2542888615), (10, 2034310892), (20, 1017155446), (31, 656229320), (40, 508577723), (62, 328114660), (101, 201416920), (124, 164057330), (127, 160181960), (155, 131245864), (202, 100708460), (248, 82028665), (254, 80090980), (310, 65622932), (404, 50354230), (505, 40283384), (508, 40045490), (620, 32811466), (635, 32036392), (808, 25177115), (1010, 20141692), (1016, 20022745), (1240, 16405733), (1270, 16018196), (1279, 15905480), (2020, 10070846), (2540, 8009098), (2558, 7952740), (3131, 6497320), (3937, 5167160), (4040, 5035423), (5080, 4004549), (5116, 3976370), (6262, 3248660), (6395, 3181096), (7874, 2583580), (10232, 1988185), (12524, 1624330), (12790, 1590548), (12827, 1585960), (15655, 1299464), (15748, 1291790), (19685, 1033432), (25048, 812165), (25580, 795274), (25654, 792980), (31310, 649732), (31496, 645895), (39370, 516716), (39649, 513080), (51160, 397637), (51308, 396490), (62620, 324866), (64135, 317192), (78740, 258358), (79298, 256540), (102616, 198245), (125240, 162433), (128270, 158596), (129179, 157480)]