20087081900

素因数分解:

$2^2\times 5^2\times {\mathrm{173}}^1\times {\mathrm{443}}^1\times {\mathrm{2621}}^1$

素因数の和:3251

約数の個数: 72

約数和(自身を含む): 43956655344

約数和(自身を除く): 23869573444

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 173, 346, 443, 692, 865, 886, 1730, 1772, 2215, 2621, 3460, 4325, 4430, 5242, 8650, 8860, 10484, 11075, 13105, 17300, 22150, 26210, 44300, 52420, 65525, 76639, 131050, 153278, 262100, 306556, 383195, 453433, 766390, 906866, 1161103, 1532780, 1813732, 1915975, 2267165, 2322206, 3831950, 4534330, 4644412, 5805515, 7663900, 9068660, 11335825, 11611030, 22671650, 23222060, 29027575, 45343300, 58055150, 116110300, 200870819, 401741638, 803483276, 1004354095, 2008708190, 4017416380, 5021770475, 10043540950, 20087081900]

約数ペア:

[(1, 20087081900), (2, 10043540950), (4, 5021770475), (5, 4017416380), (10, 2008708190), (20, 1004354095), (25, 803483276), (50, 401741638), (100, 200870819), (173, 116110300), (346, 58055150), (443, 45343300), (692, 29027575), (865, 23222060), (886, 22671650), (1730, 11611030), (1772, 11335825), (2215, 9068660), (2621, 7663900), (3460, 5805515), (4325, 4644412), (4430, 4534330), (5242, 3831950), (8650, 2322206), (8860, 2267165), (10484, 1915975), (11075, 1813732), (13105, 1532780), (17300, 1161103), (22150, 906866), (26210, 766390), (44300, 453433), (52420, 383195), (65525, 306556), (76639, 262100), (131050, 153278)]