201721100

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{523}}^1$

素因数の和:592

約数の個数: 144

約数和(自身を含む): 545798400

約数和(自身を除く): 344077300

約数列:

[1, 2, 4, 5, 7, 10, 14, 19, 20, 25, 28, 29, 35, 38, 50, 58, 70, 76, 95, 100, 116, 133, 140, 145, 175, 190, 203, 266, 290, 350, 380, 406, 475, 523, 532, 551, 580, 665, 700, 725, 812, 950, 1015, 1046, 1102, 1330, 1450, 1900, 2030, 2092, 2204, 2615, 2660, 2755, 2900, 3325, 3661, 3857, 4060, 5075, 5230, 5510, 6650, 7322, 7714, 9937, 10150, 10460, 11020, 13075, 13300, 13775, 14644, 15167, 15428, 18305, 19285, 19874, 20300, 26150, 27550, 30334, 36610, 38570, 39748, 49685, 52300, 55100, 60668, 69559, 73220, 75835, 77140, 91525, 96425, 99370, 106169, 139118, 151670, 183050, 192850, 198740, 212338, 248425, 278236, 288173, 303340, 347795, 366100, 379175, 385700, 424676, 496850, 530845, 576346, 695590, 758350, 993700, 1061690, 1152692, 1391180, 1440865, 1516700, 1738975, 2017211, 2123380, 2654225, 2881730, 3477950, 4034422, 5308450, 5763460, 6955900, 7204325, 8068844, 10086055, 10616900, 14408650, 20172110, 28817300, 40344220, 50430275, 100860550, 201721100]

約数ペア:

[(1, 201721100), (2, 100860550), (4, 50430275), (5, 40344220), (7, 28817300), (10, 20172110), (14, 14408650), (19, 10616900), (20, 10086055), (25, 8068844), (28, 7204325), (29, 6955900), (35, 5763460), (38, 5308450), (50, 4034422), (58, 3477950), (70, 2881730), (76, 2654225), (95, 2123380), (100, 2017211), (116, 1738975), (133, 1516700), (140, 1440865), (145, 1391180), (175, 1152692), (190, 1061690), (203, 993700), (266, 758350), (290, 695590), (350, 576346), (380, 530845), (406, 496850), (475, 424676), (523, 385700), (532, 379175), (551, 366100), (580, 347795), (665, 303340), (700, 288173), (725, 278236), (812, 248425), (950, 212338), (1015, 198740), (1046, 192850), (1102, 183050), (1330, 151670), (1450, 139118), (1900, 106169), (2030, 99370), (2092, 96425), (2204, 91525), (2615, 77140), (2660, 75835), (2755, 73220), (2900, 69559), (3325, 60668), (3661, 55100), (3857, 52300), (4060, 49685), (5075, 39748), (5230, 38570), (5510, 36610), (6650, 30334), (7322, 27550), (7714, 26150), (9937, 20300), (10150, 19874), (10460, 19285), (11020, 18305), (13075, 15428), (13300, 15167), (13775, 14644)]