19386640

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{2663}}^1$

素因数の和:2696

約数の個数: 80

約数和(自身を含む): 55496448

約数和(自身を除く): 36109808

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 35, 40, 52, 56, 65, 70, 80, 91, 104, 112, 130, 140, 182, 208, 260, 280, 364, 455, 520, 560, 728, 910, 1040, 1456, 1820, 2663, 3640, 5326, 7280, 10652, 13315, 18641, 21304, 26630, 34619, 37282, 42608, 53260, 69238, 74564, 93205, 106520, 138476, 149128, 173095, 186410, 213040, 242333, 276952, 298256, 346190, 372820, 484666, 553904, 692380, 745640, 969332, 1211665, 1384760, 1491280, 1938664, 2423330, 2769520, 3877328, 4846660, 9693320, 19386640]

約数ペア:

[(1, 19386640), (2, 9693320), (4, 4846660), (5, 3877328), (7, 2769520), (8, 2423330), (10, 1938664), (13, 1491280), (14, 1384760), (16, 1211665), (20, 969332), (26, 745640), (28, 692380), (35, 553904), (40, 484666), (52, 372820), (56, 346190), (65, 298256), (70, 276952), (80, 242333), (91, 213040), (104, 186410), (112, 173095), (130, 149128), (140, 138476), (182, 106520), (208, 93205), (260, 74564), (280, 69238), (364, 53260), (455, 42608), (520, 37282), (560, 34619), (728, 26630), (910, 21304), (1040, 18641), (1456, 13315), (1820, 10652), (2663, 7280), (3640, 5326)]