221325440

素因数分解:

$2^7\times 5^1\times 7^1\times {\mathrm{127}}^1\times {\mathrm{389}}^1$

素因数の和:542

約数の個数: 128

約数和(自身を含む): 611020800

約数和(自身を除く): 389695360

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 80, 112, 127, 128, 140, 160, 224, 254, 280, 320, 389, 448, 508, 560, 635, 640, 778, 889, 896, 1016, 1120, 1270, 1556, 1778, 1945, 2032, 2240, 2540, 2723, 3112, 3556, 3890, 4064, 4445, 4480, 5080, 5446, 6224, 7112, 7780, 8128, 8890, 10160, 10892, 12448, 13615, 14224, 15560, 16256, 17780, 20320, 21784, 24896, 27230, 28448, 31120, 35560, 40640, 43568, 49403, 49792, 54460, 56896, 62240, 71120, 81280, 87136, 98806, 108920, 113792, 124480, 142240, 174272, 197612, 217840, 247015, 248960, 284480, 345821, 348544, 395224, 435680, 494030, 568960, 691642, 790448, 871360, 988060, 1383284, 1580896, 1729105, 1742720, 1976120, 2766568, 3161792, 3458210, 3952240, 5533136, 6323584, 6916420, 7904480, 11066272, 13832840, 15808960, 22132544, 27665680, 31617920, 44265088, 55331360, 110662720, 221325440]

約数ペア:

[(1, 221325440), (2, 110662720), (4, 55331360), (5, 44265088), (7, 31617920), (8, 27665680), (10, 22132544), (14, 15808960), (16, 13832840), (20, 11066272), (28, 7904480), (32, 6916420), (35, 6323584), (40, 5533136), (56, 3952240), (64, 3458210), (70, 3161792), (80, 2766568), (112, 1976120), (127, 1742720), (128, 1729105), (140, 1580896), (160, 1383284), (224, 988060), (254, 871360), (280, 790448), (320, 691642), (389, 568960), (448, 494030), (508, 435680), (560, 395224), (635, 348544), (640, 345821), (778, 284480), (889, 248960), (896, 247015), (1016, 217840), (1120, 197612), (1270, 174272), (1556, 142240), (1778, 124480), (1945, 113792), (2032, 108920), (2240, 98806), (2540, 87136), (2723, 81280), (3112, 71120), (3556, 62240), (3890, 56896), (4064, 54460), (4445, 49792), (4480, 49403), (5080, 43568), (5446, 40640), (6224, 35560), (7112, 31120), (7780, 28448), (8128, 27230), (8890, 24896), (10160, 21784), (10892, 20320), (12448, 17780), (13615, 16256), (14224, 15560)]