20121745826

素因数分解:

$2^1\times 7^3\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{149}}^1\times {\mathrm{797}}^1$

素因数の和:1001

約数の個数: 128

約数和(自身を含む): 40219200000

約数和(自身を除く): 20097454174

約数列:

[1, 2, 7, 13, 14, 19, 26, 38, 49, 91, 98, 133, 149, 182, 247, 266, 298, 343, 494, 637, 686, 797, 931, 1043, 1274, 1594, 1729, 1862, 1937, 2086, 2831, 3458, 3874, 4459, 5579, 5662, 6517, 7301, 8918, 10361, 11158, 12103, 13034, 13559, 14602, 15143, 19817, 20722, 24206, 27118, 30286, 36803, 39053, 39634, 51107, 72527, 73606, 78106, 84721, 94913, 102214, 106001, 118753, 138719, 145054, 169442, 189826, 196859, 212002, 237506, 257621, 273371, 277438, 393718, 507689, 515242, 546742, 664391, 742007, 831271, 971033, 1015378, 1328782, 1378013, 1484014, 1543789, 1662542, 1803347, 1942066, 2256307, 2756026, 3087578, 3553823, 3606694, 4512614, 5194049, 5818897, 7107646, 9646091, 10388098, 10806523, 11637794, 12623429, 15794149, 19292182, 21613046, 25246858, 29331991, 31588298, 40732279, 58663982, 67522637, 75645661, 81464558, 110559043, 135045274, 151291322, 205323937, 221118086, 410647874, 529519627, 773913301, 1059039254, 1437267559, 1547826602, 2874535118, 10060872913, 20121745826]

約数ペア:

[(1, 20121745826), (2, 10060872913), (7, 2874535118), (13, 1547826602), (14, 1437267559), (19, 1059039254), (26, 773913301), (38, 529519627), (49, 410647874), (91, 221118086), (98, 205323937), (133, 151291322), (149, 135045274), (182, 110559043), (247, 81464558), (266, 75645661), (298, 67522637), (343, 58663982), (494, 40732279), (637, 31588298), (686, 29331991), (797, 25246858), (931, 21613046), (1043, 19292182), (1274, 15794149), (1594, 12623429), (1729, 11637794), (1862, 10806523), (1937, 10388098), (2086, 9646091), (2831, 7107646), (3458, 5818897), (3874, 5194049), (4459, 4512614), (5579, 3606694), (5662, 3553823), (6517, 3087578), (7301, 2756026), (8918, 2256307), (10361, 1942066), (11158, 1803347), (12103, 1662542), (13034, 1543789), (13559, 1484014), (14602, 1378013), (15143, 1328782), (19817, 1015378), (20722, 971033), (24206, 831271), (27118, 742007), (30286, 664391), (36803, 546742), (39053, 515242), (39634, 507689), (51107, 393718), (72527, 277438), (73606, 273371), (78106, 257621), (84721, 237506), (94913, 212002), (102214, 196859), (106001, 189826), (118753, 169442), (138719, 145054)]