20720448

素因数分解:

$2^6\times 3^4\times 7^1\times {\mathrm{571}}^1$

素因数の和:602

約数の個数: 140

約数和(自身を含む): 70319392

約数和(自身を除く): 49598944

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 18, 21, 24, 27, 28, 32, 36, 42, 48, 54, 56, 63, 64, 72, 81, 84, 96, 108, 112, 126, 144, 162, 168, 189, 192, 216, 224, 252, 288, 324, 336, 378, 432, 448, 504, 567, 571, 576, 648, 672, 756, 864, 1008, 1134, 1142, 1296, 1344, 1512, 1713, 1728, 2016, 2268, 2284, 2592, 3024, 3426, 3997, 4032, 4536, 4568, 5139, 5184, 6048, 6852, 7994, 9072, 9136, 10278, 11991, 12096, 13704, 15417, 15988, 18144, 18272, 20556, 23982, 27408, 30834, 31976, 35973, 36288, 36544, 41112, 46251, 47964, 54816, 61668, 63952, 71946, 82224, 92502, 95928, 107919, 109632, 123336, 127904, 143892, 164448, 185004, 191856, 215838, 246672, 255808, 287784, 323757, 328896, 370008, 383712, 431676, 493344, 575568, 647514, 740016, 767424, 863352, 986688, 1151136, 1295028, 1480032, 1726704, 2302272, 2590056, 2960064, 3453408, 5180112, 6906816, 10360224, 20720448]

約数ペア:

[(1, 20720448), (2, 10360224), (3, 6906816), (4, 5180112), (6, 3453408), (7, 2960064), (8, 2590056), (9, 2302272), (12, 1726704), (14, 1480032), (16, 1295028), (18, 1151136), (21, 986688), (24, 863352), (27, 767424), (28, 740016), (32, 647514), (36, 575568), (42, 493344), (48, 431676), (54, 383712), (56, 370008), (63, 328896), (64, 323757), (72, 287784), (81, 255808), (84, 246672), (96, 215838), (108, 191856), (112, 185004), (126, 164448), (144, 143892), (162, 127904), (168, 123336), (189, 109632), (192, 107919), (216, 95928), (224, 92502), (252, 82224), (288, 71946), (324, 63952), (336, 61668), (378, 54816), (432, 47964), (448, 46251), (504, 41112), (567, 36544), (571, 36288), (576, 35973), (648, 31976), (672, 30834), (756, 27408), (864, 23982), (1008, 20556), (1134, 18272), (1142, 18144), (1296, 15988), (1344, 15417), (1512, 13704), (1713, 12096), (1728, 11991), (2016, 10278), (2268, 9136), (2284, 9072), (2592, 7994), (3024, 6852), (3426, 6048), (3997, 5184), (4032, 5139), (4536, 4568)]