1217391520

素因数分解:

$2^5\times 5^1\times {\mathrm{127}}^1\times {\mathrm{181}}^1\times {\mathrm{331}}^1$

素因数の和:654

約数の個数: 96

約数和(自身を含む): 2923554816

約数和(自身を除く): 1706163296

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 127, 160, 181, 254, 331, 362, 508, 635, 662, 724, 905, 1016, 1270, 1324, 1448, 1655, 1810, 2032, 2540, 2648, 2896, 3310, 3620, 4064, 5080, 5296, 5792, 6620, 7240, 10160, 10592, 13240, 14480, 20320, 22987, 26480, 28960, 42037, 45974, 52960, 59911, 84074, 91948, 114935, 119822, 168148, 183896, 210185, 229870, 239644, 299555, 336296, 367792, 420370, 459740, 479288, 599110, 672592, 735584, 840740, 919480, 958576, 1198220, 1345184, 1681480, 1838960, 1917152, 2396440, 3362960, 3677920, 4792880, 6725920, 7608697, 9585760, 15217394, 30434788, 38043485, 60869576, 76086970, 121739152, 152173940, 243478304, 304347880, 608695760, 1217391520]

約数ペア:

[(1, 1217391520), (2, 608695760), (4, 304347880), (5, 243478304), (8, 152173940), (10, 121739152), (16, 76086970), (20, 60869576), (32, 38043485), (40, 30434788), (80, 15217394), (127, 9585760), (160, 7608697), (181, 6725920), (254, 4792880), (331, 3677920), (362, 3362960), (508, 2396440), (635, 1917152), (662, 1838960), (724, 1681480), (905, 1345184), (1016, 1198220), (1270, 958576), (1324, 919480), (1448, 840740), (1655, 735584), (1810, 672592), (2032, 599110), (2540, 479288), (2648, 459740), (2896, 420370), (3310, 367792), (3620, 336296), (4064, 299555), (5080, 239644), (5296, 229870), (5792, 210185), (6620, 183896), (7240, 168148), (10160, 119822), (10592, 114935), (13240, 91948), (14480, 84074), (20320, 59911), (22987, 52960), (26480, 45974), (28960, 42037)]