20171438980

素因数分解:

$2^2\times 5^1\times 7^3\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{8623}}^1$

素因数の和:8695

約数の個数: 192

約数和(自身を含む): 55635148800

約数和(自身を除く): 35463709820

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 31, 35, 44, 49, 55, 62, 70, 77, 98, 110, 124, 140, 154, 155, 196, 217, 220, 245, 308, 310, 341, 343, 385, 434, 490, 539, 620, 682, 686, 770, 868, 980, 1078, 1085, 1364, 1372, 1519, 1540, 1705, 1715, 2156, 2170, 2387, 2695, 3038, 3410, 3430, 3773, 4340, 4774, 5390, 6076, 6820, 6860, 7546, 7595, 8623, 9548, 10633, 10780, 11935, 15092, 15190, 16709, 17246, 18865, 21266, 23870, 30380, 33418, 34492, 37730, 42532, 43115, 47740, 53165, 60361, 66836, 75460, 83545, 86230, 94853, 106330, 116963, 120722, 167090, 172460, 189706, 212660, 233926, 241444, 267313, 301805, 334180, 379412, 422527, 467852, 474265, 534626, 584815, 603610, 663971, 845054, 948530, 1069252, 1169630, 1207220, 1327942, 1336565, 1690108, 1871191, 1897060, 2112635, 2339260, 2655884, 2673130, 2940443, 2957689, 3319855, 3742382, 4225270, 4647797, 5346260, 5880886, 5915378, 6639710, 7484764, 8450540, 9295594, 9355955, 11761772, 11830756, 13098337, 13279420, 14702215, 14788445, 18591188, 18711910, 20583101, 23238985, 26196674, 29404430, 29576890, 32534579, 37423820, 41166202, 46477970, 52393348, 58808860, 59153780, 65069158, 65491685, 82332404, 91688359, 92955940, 102915505, 130138316, 130983370, 144081707, 162672895, 183376718, 205831010, 261966740, 288163414, 325345790, 366753436, 411662020, 458441795, 576326828, 650691580, 720408535, 916883590, 1008571949, 1440817070, 1833767180, 2017143898, 2881634140, 4034287796, 5042859745, 10085719490, 20171438980]

約数ペア:

[(1, 20171438980), (2, 10085719490), (4, 5042859745), (5, 4034287796), (7, 2881634140), (10, 2017143898), (11, 1833767180), (14, 1440817070), (20, 1008571949), (22, 916883590), (28, 720408535), (31, 650691580), (35, 576326828), (44, 458441795), (49, 411662020), (55, 366753436), (62, 325345790), (70, 288163414), (77, 261966740), (98, 205831010), (110, 183376718), (124, 162672895), (140, 144081707), (154, 130983370), (155, 130138316), (196, 102915505), (217, 92955940), (220, 91688359), (245, 82332404), (308, 65491685), (310, 65069158), (341, 59153780), (343, 58808860), (385, 52393348), (434, 46477970), (490, 41166202), (539, 37423820), (620, 32534579), (682, 29576890), (686, 29404430), (770, 26196674), (868, 23238985), (980, 20583101), (1078, 18711910), (1085, 18591188), (1364, 14788445), (1372, 14702215), (1519, 13279420), (1540, 13098337), (1705, 11830756), (1715, 11761772), (2156, 9355955), (2170, 9295594), (2387, 8450540), (2695, 7484764), (3038, 6639710), (3410, 5915378), (3430, 5880886), (3773, 5346260), (4340, 4647797), (4774, 4225270), (5390, 3742382), (6076, 3319855), (6820, 2957689), (6860, 2940443), (7546, 2673130), (7595, 2655884), (8623, 2339260), (9548, 2112635), (10633, 1897060), (10780, 1871191), (11935, 1690108), (15092, 1336565), (15190, 1327942), (16709, 1207220), (17246, 1169630), (18865, 1069252), (21266, 948530), (23870, 845054), (30380, 663971), (33418, 603610), (34492, 584815), (37730, 534626), (42532, 474265), (43115, 467852), (47740, 422527), (53165, 379412), (60361, 334180), (66836, 301805), (75460, 267313), (83545, 241444), (86230, 233926), (94853, 212660), (106330, 189706), (116963, 172460), (120722, 167090)]