71445920

素因数分解:

$2^5\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{701}}^1$

素因数の和:743

約数の個数: 144

約数和(自身を含む): 211754088

約数和(自身を除く): 140308168

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 32, 35, 40, 49, 52, 56, 65, 70, 80, 91, 98, 104, 112, 130, 140, 160, 182, 196, 208, 224, 245, 260, 280, 364, 392, 416, 455, 490, 520, 560, 637, 701, 728, 784, 910, 980, 1040, 1120, 1274, 1402, 1456, 1568, 1820, 1960, 2080, 2548, 2804, 2912, 3185, 3505, 3640, 3920, 4907, 5096, 5608, 6370, 7010, 7280, 7840, 9113, 9814, 10192, 11216, 12740, 14020, 14560, 18226, 19628, 20384, 22432, 24535, 25480, 28040, 34349, 36452, 39256, 45565, 49070, 50960, 56080, 63791, 68698, 72904, 78512, 91130, 98140, 101920, 112160, 127582, 137396, 145808, 157024, 171745, 182260, 196280, 255164, 274792, 291616, 318955, 343490, 364520, 392560, 446537, 510328, 549584, 637910, 686980, 729040, 785120, 893074, 1020656, 1099168, 1275820, 1373960, 1458080, 1786148, 2041312, 2232685, 2551640, 2747920, 3572296, 4465370, 5103280, 5495840, 7144592, 8930740, 10206560, 14289184, 17861480, 35722960, 71445920]

約数ペア:

[(1, 71445920), (2, 35722960), (4, 17861480), (5, 14289184), (7, 10206560), (8, 8930740), (10, 7144592), (13, 5495840), (14, 5103280), (16, 4465370), (20, 3572296), (26, 2747920), (28, 2551640), (32, 2232685), (35, 2041312), (40, 1786148), (49, 1458080), (52, 1373960), (56, 1275820), (65, 1099168), (70, 1020656), (80, 893074), (91, 785120), (98, 729040), (104, 686980), (112, 637910), (130, 549584), (140, 510328), (160, 446537), (182, 392560), (196, 364520), (208, 343490), (224, 318955), (245, 291616), (260, 274792), (280, 255164), (364, 196280), (392, 182260), (416, 171745), (455, 157024), (490, 145808), (520, 137396), (560, 127582), (637, 112160), (701, 101920), (728, 98140), (784, 91130), (910, 78512), (980, 72904), (1040, 68698), (1120, 63791), (1274, 56080), (1402, 50960), (1456, 49070), (1568, 45565), (1820, 39256), (1960, 36452), (2080, 34349), (2548, 28040), (2804, 25480), (2912, 24535), (3185, 22432), (3505, 20384), (3640, 19628), (3920, 18226), (4907, 14560), (5096, 14020), (5608, 12740), (6370, 11216), (7010, 10192), (7280, 9814), (7840, 9113)]