20050050440

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{5417}}^1\times {\mathrm{13219}}^1$

素因数の和:18654

約数の個数: 64

約数和(自身を含む): 51570691200

約数和(自身を除く): 31520640760

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 5417, 10834, 13219, 21668, 26438, 27085, 37919, 43336, 52876, 54170, 66095, 75838, 92533, 105752, 108340, 132190, 151676, 185066, 189595, 216680, 264380, 303352, 370132, 379190, 462665, 528760, 740264, 758380, 925330, 1516760, 1850660, 3701320, 71607323, 143214646, 286429292, 358036615, 501251261, 572858584, 716073230, 1002502522, 1432146460, 2005005044, 2506256305, 2864292920, 4010010088, 5012512610, 10025025220, 20050050440]

約数ペア:

[(1, 20050050440), (2, 10025025220), (4, 5012512610), (5, 4010010088), (7, 2864292920), (8, 2506256305), (10, 2005005044), (14, 1432146460), (20, 1002502522), (28, 716073230), (35, 572858584), (40, 501251261), (56, 358036615), (70, 286429292), (140, 143214646), (280, 71607323), (5417, 3701320), (10834, 1850660), (13219, 1516760), (21668, 925330), (26438, 758380), (27085, 740264), (37919, 528760), (43336, 462665), (52876, 379190), (54170, 370132), (66095, 303352), (75838, 264380), (92533, 216680), (105752, 189595), (108340, 185066), (132190, 151676)]