19203808

素因数分解:

$2^5\times {\mathrm{13}}^2\times {\mathrm{53}}^1\times {\mathrm{67}}^1$

素因数の和:156

約数の個数: 72

約数和(自身を含む): 42334488

約数和(自身を除く): 23130680

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 53, 67, 104, 106, 134, 169, 208, 212, 268, 338, 416, 424, 536, 676, 689, 848, 871, 1072, 1352, 1378, 1696, 1742, 2144, 2704, 2756, 3484, 3551, 5408, 5512, 6968, 7102, 8957, 11024, 11323, 13936, 14204, 17914, 22048, 22646, 27872, 28408, 35828, 45292, 46163, 56816, 71656, 90584, 92326, 113632, 143312, 181168, 184652, 286624, 362336, 369304, 600119, 738608, 1200238, 1477216, 2400476, 4800952, 9601904, 19203808]

約数ペア:

[(1, 19203808), (2, 9601904), (4, 4800952), (8, 2400476), (13, 1477216), (16, 1200238), (26, 738608), (32, 600119), (52, 369304), (53, 362336), (67, 286624), (104, 184652), (106, 181168), (134, 143312), (169, 113632), (208, 92326), (212, 90584), (268, 71656), (338, 56816), (416, 46163), (424, 45292), (536, 35828), (676, 28408), (689, 27872), (848, 22646), (871, 22048), (1072, 17914), (1352, 14204), (1378, 13936), (1696, 11323), (1742, 11024), (2144, 8957), (2704, 7102), (2756, 6968), (3484, 5512), (3551, 5408)]