2018784780

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{541}}^1\times {\mathrm{20731}}^1$

素因数の和:21287

約数の個数: 72

約数和(自身を含む): 6135262224

約数和(自身を除く): 4116477444

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 541, 1082, 1623, 2164, 2705, 3246, 4869, 5410, 6492, 8115, 9738, 10820, 16230, 19476, 20731, 24345, 32460, 41462, 48690, 62193, 82924, 97380, 103655, 124386, 186579, 207310, 248772, 310965, 373158, 414620, 621930, 746316, 932895, 1243860, 1865790, 3731580, 11215471, 22430942, 33646413, 44861884, 56077355, 67292826, 100939239, 112154710, 134585652, 168232065, 201878478, 224309420, 336464130, 403756956, 504696195, 672928260, 1009392390, 2018784780]

約数ペア:

[(1, 2018784780), (2, 1009392390), (3, 672928260), (4, 504696195), (5, 403756956), (6, 336464130), (9, 224309420), (10, 201878478), (12, 168232065), (15, 134585652), (18, 112154710), (20, 100939239), (30, 67292826), (36, 56077355), (45, 44861884), (60, 33646413), (90, 22430942), (180, 11215471), (541, 3731580), (1082, 1865790), (1623, 1243860), (2164, 932895), (2705, 746316), (3246, 621930), (4869, 414620), (5410, 373158), (6492, 310965), (8115, 248772), (9738, 207310), (10820, 186579), (16230, 124386), (19476, 103655), (20731, 97380), (24345, 82924), (32460, 62193), (41462, 48690)]