80285940

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{63719}}^1$

素因数の和:63741

約数の個数: 72

約数和(自身を含む): 278328960

約数和(自身を除く): 198043020

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 140, 180, 210, 252, 315, 420, 630, 1260, 63719, 127438, 191157, 254876, 318595, 382314, 446033, 573471, 637190, 764628, 892066, 955785, 1146942, 1274380, 1338099, 1784132, 1911570, 2230165, 2293884, 2676198, 2867355, 3823140, 4014297, 4460330, 5352396, 5734710, 6690495, 8028594, 8920660, 11469420, 13380990, 16057188, 20071485, 26761980, 40142970, 80285940]

約数ペア:

[(1, 80285940), (2, 40142970), (3, 26761980), (4, 20071485), (5, 16057188), (6, 13380990), (7, 11469420), (9, 8920660), (10, 8028594), (12, 6690495), (14, 5734710), (15, 5352396), (18, 4460330), (20, 4014297), (21, 3823140), (28, 2867355), (30, 2676198), (35, 2293884), (36, 2230165), (42, 1911570), (45, 1784132), (60, 1338099), (63, 1274380), (70, 1146942), (84, 955785), (90, 892066), (105, 764628), (126, 637190), (140, 573471), (180, 446033), (210, 382314), (252, 318595), (315, 254876), (420, 191157), (630, 127438), (1260, 63719)]