1619688720

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{519131}}^1$

素因数の和:519160

約数の個数: 80

約数和(自身を含む): 5407278912

約数和(自身を除く): 3787590192

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 26, 30, 39, 40, 48, 52, 60, 65, 78, 80, 104, 120, 130, 156, 195, 208, 240, 260, 312, 390, 520, 624, 780, 1040, 1560, 3120, 519131, 1038262, 1557393, 2076524, 2595655, 3114786, 4153048, 5191310, 6229572, 6748703, 7786965, 8306096, 10382620, 12459144, 13497406, 15573930, 20246109, 20765240, 24918288, 26994812, 31147860, 33743515, 40492218, 41530480, 53989624, 62295720, 67487030, 80984436, 101230545, 107979248, 124591440, 134974060, 161968872, 202461090, 269948120, 323937744, 404922180, 539896240, 809844360, 1619688720]

約数ペア:

[(1, 1619688720), (2, 809844360), (3, 539896240), (4, 404922180), (5, 323937744), (6, 269948120), (8, 202461090), (10, 161968872), (12, 134974060), (13, 124591440), (15, 107979248), (16, 101230545), (20, 80984436), (24, 67487030), (26, 62295720), (30, 53989624), (39, 41530480), (40, 40492218), (48, 33743515), (52, 31147860), (60, 26994812), (65, 24918288), (78, 20765240), (80, 20246109), (104, 15573930), (120, 13497406), (130, 12459144), (156, 10382620), (195, 8306096), (208, 7786965), (240, 6748703), (260, 6229572), (312, 5191310), (390, 4153048), (520, 3114786), (624, 2595655), (780, 2076524), (1040, 1557393), (1560, 1038262), (3120, 519131)]