20699880

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{73}}^1\times {\mathrm{139}}^1$

素因数の和:243

約数の個数: 128

約数和(自身を含む): 67132800

約数和(自身を除く): 46432920

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 17, 20, 24, 30, 34, 40, 51, 60, 68, 73, 85, 102, 120, 136, 139, 146, 170, 204, 219, 255, 278, 292, 340, 365, 408, 417, 438, 510, 556, 584, 680, 695, 730, 834, 876, 1020, 1095, 1112, 1241, 1390, 1460, 1668, 1752, 2040, 2085, 2190, 2363, 2482, 2780, 2920, 3336, 3723, 4170, 4380, 4726, 4964, 5560, 6205, 7089, 7446, 8340, 8760, 9452, 9928, 10147, 11815, 12410, 14178, 14892, 16680, 18615, 18904, 20294, 23630, 24820, 28356, 29784, 30441, 35445, 37230, 40588, 47260, 49640, 50735, 56712, 60882, 70890, 74460, 81176, 94520, 101470, 121764, 141780, 148920, 152205, 172499, 202940, 243528, 283560, 304410, 344998, 405880, 517497, 608820, 689996, 862495, 1034994, 1217640, 1379992, 1724990, 2069988, 2587485, 3449980, 4139976, 5174970, 6899960, 10349940, 20699880]

約数ペア:

[(1, 20699880), (2, 10349940), (3, 6899960), (4, 5174970), (5, 4139976), (6, 3449980), (8, 2587485), (10, 2069988), (12, 1724990), (15, 1379992), (17, 1217640), (20, 1034994), (24, 862495), (30, 689996), (34, 608820), (40, 517497), (51, 405880), (60, 344998), (68, 304410), (73, 283560), (85, 243528), (102, 202940), (120, 172499), (136, 152205), (139, 148920), (146, 141780), (170, 121764), (204, 101470), (219, 94520), (255, 81176), (278, 74460), (292, 70890), (340, 60882), (365, 56712), (408, 50735), (417, 49640), (438, 47260), (510, 40588), (556, 37230), (584, 35445), (680, 30441), (695, 29784), (730, 28356), (834, 24820), (876, 23630), (1020, 20294), (1095, 18904), (1112, 18615), (1241, 16680), (1390, 14892), (1460, 14178), (1668, 12410), (1752, 11815), (2040, 10147), (2085, 9928), (2190, 9452), (2363, 8760), (2482, 8340), (2780, 7446), (2920, 7089), (3336, 6205), (3723, 5560), (4170, 4964), (4380, 4726)]