204526640

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{239}}^1\times {\mathrm{563}}^1$

素因数の和:834

約数の個数: 80

約数和(自身を含む): 503539200

約数和(自身を除く): 299012560

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 239, 304, 380, 478, 563, 760, 956, 1126, 1195, 1520, 1912, 2252, 2390, 2815, 3824, 4504, 4541, 4780, 5630, 9008, 9082, 9560, 10697, 11260, 18164, 19120, 21394, 22520, 22705, 36328, 42788, 45040, 45410, 53485, 72656, 85576, 90820, 106970, 134557, 171152, 181640, 213940, 269114, 363280, 427880, 538228, 672785, 855760, 1076456, 1345570, 2152912, 2556583, 2691140, 5113166, 5382280, 10226332, 10764560, 12782915, 20452664, 25565830, 40905328, 51131660, 102263320, 204526640]

約数ペア:

[(1, 204526640), (2, 102263320), (4, 51131660), (5, 40905328), (8, 25565830), (10, 20452664), (16, 12782915), (19, 10764560), (20, 10226332), (38, 5382280), (40, 5113166), (76, 2691140), (80, 2556583), (95, 2152912), (152, 1345570), (190, 1076456), (239, 855760), (304, 672785), (380, 538228), (478, 427880), (563, 363280), (760, 269114), (956, 213940), (1126, 181640), (1195, 171152), (1520, 134557), (1912, 106970), (2252, 90820), (2390, 85576), (2815, 72656), (3824, 53485), (4504, 45410), (4541, 45040), (4780, 42788), (5630, 36328), (9008, 22705), (9082, 22520), (9560, 21394), (10697, 19120), (11260, 18164)]