20166077840

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{133303}}^1$

素因数の和:133408

約数の個数: 80

約数和(自身を含む): 49192375296

約数和(自身を除く): 29026297456

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 61, 62, 80, 122, 124, 155, 244, 248, 305, 310, 488, 496, 610, 620, 976, 1220, 1240, 1891, 2440, 2480, 3782, 4880, 7564, 9455, 15128, 18910, 30256, 37820, 75640, 133303, 151280, 266606, 533212, 666515, 1066424, 1333030, 2132848, 2666060, 4132393, 5332120, 8131483, 8264786, 10664240, 16262966, 16529572, 20661965, 32525932, 33059144, 40657415, 41323930, 65051864, 66118288, 81314830, 82647860, 130103728, 162629660, 165295720, 252075973, 325259320, 330591440, 504151946, 650518640, 1008303892, 1260379865, 2016607784, 2520759730, 4033215568, 5041519460, 10083038920, 20166077840]

約数ペア:

[(1, 20166077840), (2, 10083038920), (4, 5041519460), (5, 4033215568), (8, 2520759730), (10, 2016607784), (16, 1260379865), (20, 1008303892), (31, 650518640), (40, 504151946), (61, 330591440), (62, 325259320), (80, 252075973), (122, 165295720), (124, 162629660), (155, 130103728), (244, 82647860), (248, 81314830), (305, 66118288), (310, 65051864), (488, 41323930), (496, 40657415), (610, 33059144), (620, 32525932), (976, 20661965), (1220, 16529572), (1240, 16262966), (1891, 10664240), (2440, 8264786), (2480, 8131483), (3782, 5332120), (4880, 4132393), (7564, 2666060), (9455, 2132848), (15128, 1333030), (18910, 1066424), (30256, 666515), (37820, 533212), (75640, 266606), (133303, 151280)]