31421820

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{641}}^1$

素因数の和:715

約数の個数: 96

約数和(自身を含む): 94913280

約数和(自身を除く): 63491460

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 19, 20, 30, 38, 43, 57, 60, 76, 86, 95, 114, 129, 172, 190, 215, 228, 258, 285, 380, 430, 516, 570, 641, 645, 817, 860, 1140, 1282, 1290, 1634, 1923, 2451, 2564, 2580, 3205, 3268, 3846, 4085, 4902, 6410, 7692, 8170, 9615, 9804, 12179, 12255, 12820, 16340, 19230, 24358, 24510, 27563, 36537, 38460, 48716, 49020, 55126, 60895, 73074, 82689, 110252, 121790, 137815, 146148, 165378, 182685, 243580, 275630, 330756, 365370, 413445, 523697, 551260, 730740, 826890, 1047394, 1571091, 1653780, 2094788, 2618485, 3142182, 5236970, 6284364, 7855455, 10473940, 15710910, 31421820]

約数ペア:

[(1, 31421820), (2, 15710910), (3, 10473940), (4, 7855455), (5, 6284364), (6, 5236970), (10, 3142182), (12, 2618485), (15, 2094788), (19, 1653780), (20, 1571091), (30, 1047394), (38, 826890), (43, 730740), (57, 551260), (60, 523697), (76, 413445), (86, 365370), (95, 330756), (114, 275630), (129, 243580), (172, 182685), (190, 165378), (215, 146148), (228, 137815), (258, 121790), (285, 110252), (380, 82689), (430, 73074), (516, 60895), (570, 55126), (641, 49020), (645, 48716), (817, 38460), (860, 36537), (1140, 27563), (1282, 24510), (1290, 24358), (1634, 19230), (1923, 16340), (2451, 12820), (2564, 12255), (2580, 12179), (3205, 9804), (3268, 9615), (3846, 8170), (4085, 7692), (4902, 6410)]