19831520

素因数分解:

$2^5\times 5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{317}}^1$

素因数の和:372

約数の個数: 96

約数和(自身を含む): 51928128

約数和(自身を除く): 32096608

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 23, 32, 34, 40, 46, 68, 80, 85, 92, 115, 136, 160, 170, 184, 230, 272, 317, 340, 368, 391, 460, 544, 634, 680, 736, 782, 920, 1268, 1360, 1564, 1585, 1840, 1955, 2536, 2720, 3128, 3170, 3680, 3910, 5072, 5389, 6256, 6340, 7291, 7820, 10144, 10778, 12512, 12680, 14582, 15640, 21556, 25360, 26945, 29164, 31280, 36455, 43112, 50720, 53890, 58328, 62560, 72910, 86224, 107780, 116656, 123947, 145820, 172448, 215560, 233312, 247894, 291640, 431120, 495788, 583280, 619735, 862240, 991576, 1166560, 1239470, 1983152, 2478940, 3966304, 4957880, 9915760, 19831520]

約数ペア:

[(1, 19831520), (2, 9915760), (4, 4957880), (5, 3966304), (8, 2478940), (10, 1983152), (16, 1239470), (17, 1166560), (20, 991576), (23, 862240), (32, 619735), (34, 583280), (40, 495788), (46, 431120), (68, 291640), (80, 247894), (85, 233312), (92, 215560), (115, 172448), (136, 145820), (160, 123947), (170, 116656), (184, 107780), (230, 86224), (272, 72910), (317, 62560), (340, 58328), (368, 53890), (391, 50720), (460, 43112), (544, 36455), (634, 31280), (680, 29164), (736, 26945), (782, 25360), (920, 21556), (1268, 15640), (1360, 14582), (1564, 12680), (1585, 12512), (1840, 10778), (1955, 10144), (2536, 7820), (2720, 7291), (3128, 6340), (3170, 6256), (3680, 5389), (3910, 5072)]