20147796080

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{179}}^1\times {\mathrm{74051}}^1$

素因数の和:74262

約数の個数: 80

約数和(自身を含む): 49585219200

約数和(自身を除く): 29437423120

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 179, 190, 304, 358, 380, 716, 760, 895, 1432, 1520, 1790, 2864, 3401, 3580, 6802, 7160, 13604, 14320, 17005, 27208, 34010, 54416, 68020, 74051, 136040, 148102, 272080, 296204, 370255, 592408, 740510, 1184816, 1406969, 1481020, 2813938, 2962040, 5627876, 5924080, 7034845, 11255752, 13255129, 14069690, 22511504, 26510258, 28139380, 53020516, 56278760, 66275645, 106041032, 112557520, 132551290, 212082064, 251847451, 265102580, 503694902, 530205160, 1007389804, 1060410320, 1259237255, 2014779608, 2518474510, 4029559216, 5036949020, 10073898040, 20147796080]

約数ペア:

[(1, 20147796080), (2, 10073898040), (4, 5036949020), (5, 4029559216), (8, 2518474510), (10, 2014779608), (16, 1259237255), (19, 1060410320), (20, 1007389804), (38, 530205160), (40, 503694902), (76, 265102580), (80, 251847451), (95, 212082064), (152, 132551290), (179, 112557520), (190, 106041032), (304, 66275645), (358, 56278760), (380, 53020516), (716, 28139380), (760, 26510258), (895, 22511504), (1432, 14069690), (1520, 13255129), (1790, 11255752), (2864, 7034845), (3401, 5924080), (3580, 5627876), (6802, 2962040), (7160, 2813938), (13604, 1481020), (14320, 1406969), (17005, 1184816), (27208, 740510), (34010, 592408), (54416, 370255), (68020, 296204), (74051, 272080), (136040, 148102)]