31140720

素因数分解:

$2^4\times 3^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1109}}^1$

素因数の和:1144

約数の個数: 160

約数和(自身を含む): 115617600

約数和(自身を除く): 84476880

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 16, 18, 20, 24, 26, 27, 30, 36, 39, 40, 45, 48, 52, 54, 60, 65, 72, 78, 80, 90, 104, 108, 117, 120, 130, 135, 144, 156, 180, 195, 208, 216, 234, 240, 260, 270, 312, 351, 360, 390, 432, 468, 520, 540, 585, 624, 702, 720, 780, 936, 1040, 1080, 1109, 1170, 1404, 1560, 1755, 1872, 2160, 2218, 2340, 2808, 3120, 3327, 3510, 4436, 4680, 5545, 5616, 6654, 7020, 8872, 9360, 9981, 11090, 13308, 14040, 14417, 16635, 17744, 19962, 22180, 26616, 28080, 28834, 29943, 33270, 39924, 43251, 44360, 49905, 53232, 57668, 59886, 66540, 72085, 79848, 86502, 88720, 99810, 115336, 119772, 129753, 133080, 144170, 149715, 159696, 173004, 199620, 216255, 230672, 239544, 259506, 266160, 288340, 299430, 346008, 389259, 399240, 432510, 479088, 519012, 576680, 598860, 648765, 692016, 778518, 798480, 865020, 1038024, 1153360, 1197720, 1297530, 1557036, 1730040, 1946295, 2076048, 2395440, 2595060, 3114072, 3460080, 3892590, 5190120, 6228144, 7785180, 10380240, 15570360, 31140720]

約数ペア:

[(1, 31140720), (2, 15570360), (3, 10380240), (4, 7785180), (5, 6228144), (6, 5190120), (8, 3892590), (9, 3460080), (10, 3114072), (12, 2595060), (13, 2395440), (15, 2076048), (16, 1946295), (18, 1730040), (20, 1557036), (24, 1297530), (26, 1197720), (27, 1153360), (30, 1038024), (36, 865020), (39, 798480), (40, 778518), (45, 692016), (48, 648765), (52, 598860), (54, 576680), (60, 519012), (65, 479088), (72, 432510), (78, 399240), (80, 389259), (90, 346008), (104, 299430), (108, 288340), (117, 266160), (120, 259506), (130, 239544), (135, 230672), (144, 216255), (156, 199620), (180, 173004), (195, 159696), (208, 149715), (216, 144170), (234, 133080), (240, 129753), (260, 119772), (270, 115336), (312, 99810), (351, 88720), (360, 86502), (390, 79848), (432, 72085), (468, 66540), (520, 59886), (540, 57668), (585, 53232), (624, 49905), (702, 44360), (720, 43251), (780, 39924), (936, 33270), (1040, 29943), (1080, 28834), (1109, 28080), (1170, 26616), (1404, 22180), (1560, 19962), (1755, 17744), (1872, 16635), (2160, 14417), (2218, 14040), (2340, 13308), (2808, 11090), (3120, 9981), (3327, 9360), (3510, 8872), (4436, 7020), (4680, 6654), (5545, 5616)]