78565517180

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{89}}^1\times {\mathrm{32719}}^1$

素因数の和:32907

約数の個数: 96

約数和(自身を含む): 178101504000

約数和(自身を除く): 99535986820

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 71, 76, 89, 95, 142, 178, 190, 284, 355, 356, 380, 445, 710, 890, 1349, 1420, 1691, 1780, 2698, 3382, 5396, 6319, 6745, 6764, 8455, 12638, 13490, 16910, 25276, 26980, 31595, 32719, 33820, 63190, 65438, 120061, 126380, 130876, 163595, 240122, 327190, 480244, 600305, 621661, 654380, 1200610, 1243322, 2323049, 2401220, 2486644, 2911991, 3108305, 4646098, 5823982, 6216610, 9292196, 11615245, 11647964, 12433220, 14559955, 23230490, 29119910, 44137931, 46460980, 55327829, 58239820, 88275862, 110655658, 176551724, 206751361, 220689655, 221311316, 276639145, 413502722, 441379310, 553278290, 827005444, 882758620, 1033756805, 1106556580, 2067513610, 3928275859, 4135027220, 7856551718, 15713103436, 19641379295, 39282758590, 78565517180]

約数ペア:

[(1, 78565517180), (2, 39282758590), (4, 19641379295), (5, 15713103436), (10, 7856551718), (19, 4135027220), (20, 3928275859), (38, 2067513610), (71, 1106556580), (76, 1033756805), (89, 882758620), (95, 827005444), (142, 553278290), (178, 441379310), (190, 413502722), (284, 276639145), (355, 221311316), (356, 220689655), (380, 206751361), (445, 176551724), (710, 110655658), (890, 88275862), (1349, 58239820), (1420, 55327829), (1691, 46460980), (1780, 44137931), (2698, 29119910), (3382, 23230490), (5396, 14559955), (6319, 12433220), (6745, 11647964), (6764, 11615245), (8455, 9292196), (12638, 6216610), (13490, 5823982), (16910, 4646098), (25276, 3108305), (26980, 2911991), (31595, 2486644), (32719, 2401220), (33820, 2323049), (63190, 1243322), (65438, 1200610), (120061, 654380), (126380, 621661), (130876, 600305), (163595, 480244), (240122, 327190)]