20070786428

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^2\times {\mathrm{97}}^1\times {\mathrm{157}}^1\times {\mathrm{389}}^1$

素因数の和:676

約数の個数: 144

約数和(自身を含む): 44976684480

約数和(自身を除く): 24905898052

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 77, 97, 121, 154, 157, 194, 242, 308, 314, 388, 389, 484, 628, 679, 778, 847, 1067, 1099, 1358, 1556, 1694, 1727, 2134, 2198, 2716, 2723, 3388, 3454, 4268, 4279, 4396, 5446, 6908, 7469, 8558, 10892, 11737, 12089, 14938, 15229, 17116, 18997, 23474, 24178, 29876, 29953, 30458, 37733, 37994, 46948, 47069, 48356, 59906, 60916, 61073, 75466, 75988, 82159, 94138, 106603, 119812, 122146, 132979, 150932, 164318, 167519, 188276, 213206, 244292, 264131, 265958, 328636, 329483, 335038, 415063, 426412, 427511, 528262, 531916, 658966, 670076, 671803, 830126, 855022, 1056524, 1172633, 1317932, 1343606, 1660252, 1710044, 1842709, 2345266, 2687212, 2905441, 3685418, 4565693, 4690532, 4702621, 5810882, 5924081, 7370836, 7389833, 9131386, 9405242, 11621764, 11848162, 12898963, 14779666, 18262772, 18810484, 23696324, 25797926, 29559332, 31959851, 41468567, 51595852, 51728831, 63919702, 65164891, 82937134, 103457662, 127839404, 130329782, 165874268, 206915324, 260659564, 456154237, 716813801, 912308474, 1433627602, 1824616948, 2867255204, 5017696607, 10035393214, 20070786428]

約数ペア:

[(1, 20070786428), (2, 10035393214), (4, 5017696607), (7, 2867255204), (11, 1824616948), (14, 1433627602), (22, 912308474), (28, 716813801), (44, 456154237), (77, 260659564), (97, 206915324), (121, 165874268), (154, 130329782), (157, 127839404), (194, 103457662), (242, 82937134), (308, 65164891), (314, 63919702), (388, 51728831), (389, 51595852), (484, 41468567), (628, 31959851), (679, 29559332), (778, 25797926), (847, 23696324), (1067, 18810484), (1099, 18262772), (1358, 14779666), (1556, 12898963), (1694, 11848162), (1727, 11621764), (2134, 9405242), (2198, 9131386), (2716, 7389833), (2723, 7370836), (3388, 5924081), (3454, 5810882), (4268, 4702621), (4279, 4690532), (4396, 4565693), (5446, 3685418), (6908, 2905441), (7469, 2687212), (8558, 2345266), (10892, 1842709), (11737, 1710044), (12089, 1660252), (14938, 1343606), (15229, 1317932), (17116, 1172633), (18997, 1056524), (23474, 855022), (24178, 830126), (29876, 671803), (29953, 670076), (30458, 658966), (37733, 531916), (37994, 528262), (46948, 427511), (47069, 426412), (48356, 415063), (59906, 335038), (60916, 329483), (61073, 328636), (75466, 265958), (75988, 264131), (82159, 244292), (94138, 213206), (106603, 188276), (119812, 167519), (122146, 164318), (132979, 150932)]