209900320

素因数分解:

$2^5\times 5^1\times 7^2\times {\mathrm{41}}^1\times {\mathrm{653}}^1$

素因数の和:723

約数の個数: 144

約数和(自身を含む): 591825528

約数和(自身を除く): 381925208

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 41, 49, 56, 70, 80, 82, 98, 112, 140, 160, 164, 196, 205, 224, 245, 280, 287, 328, 392, 410, 490, 560, 574, 653, 656, 784, 820, 980, 1120, 1148, 1306, 1312, 1435, 1568, 1640, 1960, 2009, 2296, 2612, 2870, 3265, 3280, 3920, 4018, 4571, 4592, 5224, 5740, 6530, 6560, 7840, 8036, 9142, 9184, 10045, 10448, 11480, 13060, 16072, 18284, 20090, 20896, 22855, 22960, 26120, 26773, 31997, 32144, 36568, 40180, 45710, 45920, 52240, 53546, 63994, 64288, 73136, 80360, 91420, 104480, 107092, 127988, 133865, 146272, 159985, 160720, 182840, 187411, 214184, 255976, 267730, 319970, 321440, 365680, 374822, 428368, 511952, 535460, 639940, 731360, 749644, 856736, 937055, 1023904, 1070920, 1279880, 1311877, 1499288, 1874110, 2141840, 2559760, 2623754, 2998576, 3748220, 4283680, 5119520, 5247508, 5997152, 6559385, 7496440, 10495016, 13118770, 14992880, 20990032, 26237540, 29985760, 41980064, 52475080, 104950160, 209900320]

約数ペア:

[(1, 209900320), (2, 104950160), (4, 52475080), (5, 41980064), (7, 29985760), (8, 26237540), (10, 20990032), (14, 14992880), (16, 13118770), (20, 10495016), (28, 7496440), (32, 6559385), (35, 5997152), (40, 5247508), (41, 5119520), (49, 4283680), (56, 3748220), (70, 2998576), (80, 2623754), (82, 2559760), (98, 2141840), (112, 1874110), (140, 1499288), (160, 1311877), (164, 1279880), (196, 1070920), (205, 1023904), (224, 937055), (245, 856736), (280, 749644), (287, 731360), (328, 639940), (392, 535460), (410, 511952), (490, 428368), (560, 374822), (574, 365680), (653, 321440), (656, 319970), (784, 267730), (820, 255976), (980, 214184), (1120, 187411), (1148, 182840), (1306, 160720), (1312, 159985), (1435, 146272), (1568, 133865), (1640, 127988), (1960, 107092), (2009, 104480), (2296, 91420), (2612, 80360), (2870, 73136), (3265, 64288), (3280, 63994), (3920, 53546), (4018, 52240), (4571, 45920), (4592, 45710), (5224, 40180), (5740, 36568), (6530, 32144), (6560, 31997), (7840, 26773), (8036, 26120), (9142, 22960), (9184, 22855), (10045, 20896), (10448, 20090), (11480, 18284), (13060, 16072)]