19965087180

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{251}}^1\times {\mathrm{647}}^1\times {\mathrm{683}}^1$

素因数の和:1596

約数の個数: 144

約数和(自身を含む): 60985177344

約数和(自身を除く): 41020090164

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 251, 502, 647, 683, 753, 1004, 1255, 1294, 1366, 1506, 1941, 2049, 2259, 2510, 2588, 2732, 3012, 3235, 3415, 3765, 3882, 4098, 4518, 5020, 5823, 6147, 6470, 6830, 7530, 7764, 8196, 9036, 9705, 10245, 11295, 11646, 12294, 12940, 13660, 15060, 19410, 20490, 22590, 23292, 24588, 29115, 30735, 38820, 40980, 45180, 58230, 61470, 116460, 122940, 162397, 171433, 324794, 342866, 441901, 487191, 514299, 649588, 685732, 811985, 857165, 883802, 974382, 1028598, 1325703, 1461573, 1542897, 1623970, 1714330, 1767604, 1948764, 2057196, 2209505, 2435955, 2571495, 2651406, 2923146, 3085794, 3247940, 3428660, 3977109, 4419010, 4871910, 5142990, 5302812, 5846292, 6171588, 6628515, 7307865, 7714485, 7954218, 8838020, 9743820, 10285980, 13257030, 14615730, 15428970, 15908436, 19885545, 26514060, 29231460, 30857940, 39771090, 79542180, 110917151, 221834302, 332751453, 443668604, 554585755, 665502906, 998254359, 1109171510, 1331005812, 1663757265, 1996508718, 2218343020, 3327514530, 3993017436, 4991271795, 6655029060, 9982543590, 19965087180]

約数ペア:

[(1, 19965087180), (2, 9982543590), (3, 6655029060), (4, 4991271795), (5, 3993017436), (6, 3327514530), (9, 2218343020), (10, 1996508718), (12, 1663757265), (15, 1331005812), (18, 1109171510), (20, 998254359), (30, 665502906), (36, 554585755), (45, 443668604), (60, 332751453), (90, 221834302), (180, 110917151), (251, 79542180), (502, 39771090), (647, 30857940), (683, 29231460), (753, 26514060), (1004, 19885545), (1255, 15908436), (1294, 15428970), (1366, 14615730), (1506, 13257030), (1941, 10285980), (2049, 9743820), (2259, 8838020), (2510, 7954218), (2588, 7714485), (2732, 7307865), (3012, 6628515), (3235, 6171588), (3415, 5846292), (3765, 5302812), (3882, 5142990), (4098, 4871910), (4518, 4419010), (5020, 3977109), (5823, 3428660), (6147, 3247940), (6470, 3085794), (6830, 2923146), (7530, 2651406), (7764, 2571495), (8196, 2435955), (9036, 2209505), (9705, 2057196), (10245, 1948764), (11295, 1767604), (11646, 1714330), (12294, 1623970), (12940, 1542897), (13660, 1461573), (15060, 1325703), (19410, 1028598), (20490, 974382), (22590, 883802), (23292, 857165), (24588, 811985), (29115, 685732), (30735, 649588), (38820, 514299), (40980, 487191), (45180, 441901), (58230, 342866), (61470, 324794), (116460, 171433), (122940, 162397)]