19624240

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{193}}^1$

素因数の和:278

約数の個数: 80

約数和(自身を含む): 48496896

約数和(自身を除く): 28872656

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 41, 62, 80, 82, 124, 155, 164, 193, 205, 248, 310, 328, 386, 410, 496, 620, 656, 772, 820, 965, 1240, 1271, 1544, 1640, 1930, 2480, 2542, 3088, 3280, 3860, 5084, 5983, 6355, 7720, 7913, 10168, 11966, 12710, 15440, 15826, 20336, 23932, 25420, 29915, 31652, 39565, 47864, 50840, 59830, 63304, 79130, 95728, 101680, 119660, 126608, 158260, 239320, 245303, 316520, 478640, 490606, 633040, 981212, 1226515, 1962424, 2453030, 3924848, 4906060, 9812120, 19624240]

約数ペア:

[(1, 19624240), (2, 9812120), (4, 4906060), (5, 3924848), (8, 2453030), (10, 1962424), (16, 1226515), (20, 981212), (31, 633040), (40, 490606), (41, 478640), (62, 316520), (80, 245303), (82, 239320), (124, 158260), (155, 126608), (164, 119660), (193, 101680), (205, 95728), (248, 79130), (310, 63304), (328, 59830), (386, 50840), (410, 47864), (496, 39565), (620, 31652), (656, 29915), (772, 25420), (820, 23932), (965, 20336), (1240, 15826), (1271, 15440), (1544, 12710), (1640, 11966), (1930, 10168), (2480, 7913), (2542, 7720), (3088, 6355), (3280, 5983), (3860, 5084)]