257472720

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{541}}^1\times {\mathrm{661}}^1$

素因数の和:1221

約数の個数: 120

約数和(自身を含む): 867588072

約数和(自身を除く): 610115352

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 80, 90, 120, 144, 180, 240, 360, 541, 661, 720, 1082, 1322, 1623, 1983, 2164, 2644, 2705, 3246, 3305, 3966, 4328, 4869, 5288, 5410, 5949, 6492, 6610, 7932, 8115, 8656, 9738, 9915, 10576, 10820, 11898, 12984, 13220, 15864, 16230, 19476, 19830, 21640, 23796, 24345, 25968, 26440, 29745, 31728, 32460, 38952, 39660, 43280, 47592, 48690, 52880, 59490, 64920, 77904, 79320, 95184, 97380, 118980, 129840, 158640, 194760, 237960, 357601, 389520, 475920, 715202, 1072803, 1430404, 1788005, 2145606, 2860808, 3218409, 3576010, 4291212, 5364015, 5721616, 6436818, 7152020, 8582424, 10728030, 12873636, 14304040, 16092045, 17164848, 21456060, 25747272, 28608080, 32184090, 42912120, 51494544, 64368180, 85824240, 128736360, 257472720]

約数ペア:

[(1, 257472720), (2, 128736360), (3, 85824240), (4, 64368180), (5, 51494544), (6, 42912120), (8, 32184090), (9, 28608080), (10, 25747272), (12, 21456060), (15, 17164848), (16, 16092045), (18, 14304040), (20, 12873636), (24, 10728030), (30, 8582424), (36, 7152020), (40, 6436818), (45, 5721616), (48, 5364015), (60, 4291212), (72, 3576010), (80, 3218409), (90, 2860808), (120, 2145606), (144, 1788005), (180, 1430404), (240, 1072803), (360, 715202), (541, 475920), (661, 389520), (720, 357601), (1082, 237960), (1322, 194760), (1623, 158640), (1983, 129840), (2164, 118980), (2644, 97380), (2705, 95184), (3246, 79320), (3305, 77904), (3966, 64920), (4328, 59490), (4869, 52880), (5288, 48690), (5410, 47592), (5949, 43280), (6492, 39660), (6610, 38952), (7932, 32460), (8115, 31728), (8656, 29745), (9738, 26440), (9915, 25968), (10576, 24345), (10820, 23796), (11898, 21640), (12984, 19830), (13220, 19476), (15864, 16230)]