72458640

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{157}}^1\times {\mathrm{641}}^1$

素因数の和:817

約数の個数: 120

約数和(自身を含む): 245272248

約数和(自身を除く): 172813608

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, 157, 180, 240, 314, 360, 471, 628, 641, 720, 785, 942, 1256, 1282, 1413, 1570, 1884, 1923, 2355, 2512, 2564, 2826, 3140, 3205, 3768, 3846, 4710, 5128, 5652, 5769, 6280, 6410, 7065, 7536, 7692, 9420, 9615, 10256, 11304, 11538, 12560, 12820, 14130, 15384, 18840, 19230, 22608, 23076, 25640, 28260, 28845, 30768, 37680, 38460, 46152, 51280, 56520, 57690, 76920, 92304, 100637, 113040, 115380, 153840, 201274, 230760, 301911, 402548, 461520, 503185, 603822, 805096, 905733, 1006370, 1207644, 1509555, 1610192, 1811466, 2012740, 2415288, 3019110, 3622932, 4025480, 4528665, 4830576, 6038220, 7245864, 8050960, 9057330, 12076440, 14491728, 18114660, 24152880, 36229320, 72458640]

約数ペア:

[(1, 72458640), (2, 36229320), (3, 24152880), (4, 18114660), (5, 14491728), (6, 12076440), (8, 9057330), (9, 8050960), (10, 7245864), (12, 6038220), (15, 4830576), (16, 4528665), (18, 4025480), (20, 3622932), (24, 3019110), (30, 2415288), (36, 2012740), (40, 1811466), (45, 1610192), (48, 1509555), (60, 1207644), (72, 1006370), (80, 905733), (90, 805096), (120, 603822), (144, 503185), (157, 461520), (180, 402548), (240, 301911), (314, 230760), (360, 201274), (471, 153840), (628, 115380), (641, 113040), (720, 100637), (785, 92304), (942, 76920), (1256, 57690), (1282, 56520), (1413, 51280), (1570, 46152), (1884, 38460), (1923, 37680), (2355, 30768), (2512, 28845), (2564, 28260), (2826, 25640), (3140, 23076), (3205, 22608), (3768, 19230), (3846, 18840), (4710, 15384), (5128, 14130), (5652, 12820), (5769, 12560), (6280, 11538), (6410, 11304), (7065, 10256), (7536, 9615), (7692, 9420)]