20407380786

素因数分解:

$2^1\times 3^3\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{15373}}^1$

素因数の和:15489

約数の個数: 128

約数和(自身を含む): 51243386880

約数和(自身を除く): 30836006094

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 27, 31, 39, 54, 61, 62, 78, 93, 117, 122, 183, 186, 234, 279, 351, 366, 403, 549, 558, 702, 793, 806, 837, 1098, 1209, 1586, 1647, 1674, 1891, 2379, 2418, 3294, 3627, 3782, 4758, 5673, 7137, 7254, 10881, 11346, 14274, 15373, 17019, 21411, 21762, 24583, 30746, 34038, 42822, 46119, 49166, 51057, 73749, 92238, 102114, 138357, 147498, 199849, 221247, 276714, 399698, 415071, 442494, 476563, 599547, 663741, 830142, 937753, 953126, 1199094, 1327482, 1429689, 1798641, 1875506, 2813259, 2859378, 3597282, 4289067, 5395923, 5626518, 6195319, 8439777, 8578134, 10791846, 12190789, 12390638, 12867201, 16879554, 18585957, 24381578, 25319331, 25734402, 29070343, 36572367, 37171914, 50638662, 55757871, 58140686, 73144734, 87211029, 109717101, 111515742, 167273613, 174422058, 219434202, 261633087, 329151303, 334547226, 377914459, 523266174, 658302606, 755828918, 784899261, 1133743377, 1569798522, 2267486754, 3401230131, 6802460262, 10203690393, 20407380786]

約数ペア:

[(1, 20407380786), (2, 10203690393), (3, 6802460262), (6, 3401230131), (9, 2267486754), (13, 1569798522), (18, 1133743377), (26, 784899261), (27, 755828918), (31, 658302606), (39, 523266174), (54, 377914459), (61, 334547226), (62, 329151303), (78, 261633087), (93, 219434202), (117, 174422058), (122, 167273613), (183, 111515742), (186, 109717101), (234, 87211029), (279, 73144734), (351, 58140686), (366, 55757871), (403, 50638662), (549, 37171914), (558, 36572367), (702, 29070343), (793, 25734402), (806, 25319331), (837, 24381578), (1098, 18585957), (1209, 16879554), (1586, 12867201), (1647, 12390638), (1674, 12190789), (1891, 10791846), (2379, 8578134), (2418, 8439777), (3294, 6195319), (3627, 5626518), (3782, 5395923), (4758, 4289067), (5673, 3597282), (7137, 2859378), (7254, 2813259), (10881, 1875506), (11346, 1798641), (14274, 1429689), (15373, 1327482), (17019, 1199094), (21411, 953126), (21762, 937753), (24583, 830142), (30746, 663741), (34038, 599547), (42822, 476563), (46119, 442494), (49166, 415071), (51057, 399698), (73749, 276714), (92238, 221247), (102114, 199849), (138357, 147498)]