20801218144

素因数分解:

$2^5\times 7^2\times {\mathrm{41}}^1\times {\mathrm{257}}^1\times {\mathrm{1259}}^1$

素因数の和:1581

約数の個数: 144

約数和(自身を含む): 49029215760

約数和(自身を除く): 28227997616

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 41, 49, 56, 82, 98, 112, 164, 196, 224, 257, 287, 328, 392, 514, 574, 656, 784, 1028, 1148, 1259, 1312, 1568, 1799, 2009, 2056, 2296, 2518, 3598, 4018, 4112, 4592, 5036, 7196, 8036, 8224, 8813, 9184, 10072, 10537, 12593, 14392, 16072, 17626, 20144, 21074, 25186, 28784, 32144, 35252, 40288, 42148, 50372, 51619, 57568, 61691, 64288, 70504, 73759, 84296, 100744, 103238, 123382, 141008, 147518, 168592, 201488, 206476, 246764, 282016, 295036, 323563, 337184, 361333, 402976, 412952, 493528, 516313, 590072, 647126, 722666, 825904, 987056, 1032626, 1180144, 1294252, 1445332, 1651808, 1974112, 2065252, 2264941, 2360288, 2529331, 2588504, 2890664, 4130504, 4529882, 5058662, 5177008, 5781328, 8261008, 9059764, 10117324, 10354016, 11562656, 13266083, 15854587, 16522016, 18119528, 20234648, 26532166, 31709174, 36239056, 40469296, 53064332, 63418348, 72478112, 80938592, 92862581, 106128664, 126836696, 185725162, 212257328, 253673392, 371450324, 424514656, 507346784, 650038067, 742900648, 1300076134, 1485801296, 2600152268, 2971602592, 5200304536, 10400609072, 20801218144]

約数ペア:

[(1, 20801218144), (2, 10400609072), (4, 5200304536), (7, 2971602592), (8, 2600152268), (14, 1485801296), (16, 1300076134), (28, 742900648), (32, 650038067), (41, 507346784), (49, 424514656), (56, 371450324), (82, 253673392), (98, 212257328), (112, 185725162), (164, 126836696), (196, 106128664), (224, 92862581), (257, 80938592), (287, 72478112), (328, 63418348), (392, 53064332), (514, 40469296), (574, 36239056), (656, 31709174), (784, 26532166), (1028, 20234648), (1148, 18119528), (1259, 16522016), (1312, 15854587), (1568, 13266083), (1799, 11562656), (2009, 10354016), (2056, 10117324), (2296, 9059764), (2518, 8261008), (3598, 5781328), (4018, 5177008), (4112, 5058662), (4592, 4529882), (5036, 4130504), (7196, 2890664), (8036, 2588504), (8224, 2529331), (8813, 2360288), (9184, 2264941), (10072, 2065252), (10537, 1974112), (12593, 1651808), (14392, 1445332), (16072, 1294252), (17626, 1180144), (20144, 1032626), (21074, 987056), (25186, 825904), (28784, 722666), (32144, 647126), (35252, 590072), (40288, 516313), (42148, 493528), (50372, 412952), (51619, 402976), (57568, 361333), (61691, 337184), (64288, 323563), (70504, 295036), (73759, 282016), (84296, 246764), (100744, 206476), (103238, 201488), (123382, 168592), (141008, 147518)]