221435480

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{97}}^1\times {\mathrm{263}}^1$

素因数の和:409

約数の個数: 128

約数和(自身を含む): 596090880

約数和(自身を除く): 374655400

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 31, 35, 40, 56, 62, 70, 97, 124, 140, 155, 194, 217, 248, 263, 280, 310, 388, 434, 485, 526, 620, 679, 776, 868, 970, 1052, 1085, 1240, 1315, 1358, 1736, 1841, 1940, 2104, 2170, 2630, 2716, 3007, 3395, 3682, 3880, 4340, 5260, 5432, 6014, 6790, 7364, 8153, 8680, 9205, 10520, 12028, 13580, 14728, 15035, 16306, 18410, 21049, 24056, 25511, 27160, 30070, 32612, 36820, 40765, 42098, 51022, 57071, 60140, 65224, 73640, 81530, 84196, 102044, 105245, 114142, 120280, 127555, 163060, 168392, 178577, 204088, 210490, 228284, 255110, 285355, 326120, 357154, 420980, 456568, 510220, 570710, 714308, 790841, 841960, 892885, 1020440, 1141420, 1428616, 1581682, 1785770, 2282840, 3163364, 3571540, 3954205, 5535887, 6326728, 7143080, 7908410, 11071774, 15816820, 22143548, 27679435, 31633640, 44287096, 55358870, 110717740, 221435480]

約数ペア:

[(1, 221435480), (2, 110717740), (4, 55358870), (5, 44287096), (7, 31633640), (8, 27679435), (10, 22143548), (14, 15816820), (20, 11071774), (28, 7908410), (31, 7143080), (35, 6326728), (40, 5535887), (56, 3954205), (62, 3571540), (70, 3163364), (97, 2282840), (124, 1785770), (140, 1581682), (155, 1428616), (194, 1141420), (217, 1020440), (248, 892885), (263, 841960), (280, 790841), (310, 714308), (388, 570710), (434, 510220), (485, 456568), (526, 420980), (620, 357154), (679, 326120), (776, 285355), (868, 255110), (970, 228284), (1052, 210490), (1085, 204088), (1240, 178577), (1315, 168392), (1358, 163060), (1736, 127555), (1841, 120280), (1940, 114142), (2104, 105245), (2170, 102044), (2630, 84196), (2716, 81530), (3007, 73640), (3395, 65224), (3682, 60140), (3880, 57071), (4340, 51022), (5260, 42098), (5432, 40765), (6014, 36820), (6790, 32612), (7364, 30070), (8153, 27160), (8680, 25511), (9205, 24056), (10520, 21049), (12028, 18410), (13580, 16306), (14728, 15035)]