128403520

素因数分解:

$2^6\times 5^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{431}}^1$

素因数の和:481

約数の個数: 168

約数和(自身を含む): 375269760

約数和(自身を除く): 246866240

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 19, 20, 28, 32, 35, 38, 40, 49, 56, 64, 70, 76, 80, 95, 98, 112, 133, 140, 152, 160, 190, 196, 224, 245, 266, 280, 304, 320, 380, 392, 431, 448, 490, 532, 560, 608, 665, 760, 784, 862, 931, 980, 1064, 1120, 1216, 1330, 1520, 1568, 1724, 1862, 1960, 2128, 2155, 2240, 2660, 3017, 3040, 3136, 3448, 3724, 3920, 4256, 4310, 4655, 5320, 6034, 6080, 6896, 7448, 7840, 8189, 8512, 8620, 9310, 10640, 12068, 13792, 14896, 15085, 15680, 16378, 17240, 18620, 21119, 21280, 24136, 27584, 29792, 30170, 32756, 34480, 37240, 40945, 42238, 42560, 48272, 57323, 59584, 60340, 65512, 68960, 74480, 81890, 84476, 96544, 105595, 114646, 120680, 131024, 137920, 148960, 163780, 168952, 193088, 211190, 229292, 241360, 262048, 286615, 297920, 327560, 337904, 401261, 422380, 458584, 482720, 524096, 573230, 655120, 675808, 802522, 844760, 917168, 965440, 1146460, 1310240, 1351616, 1605044, 1689520, 1834336, 2006305, 2292920, 2620480, 3210088, 3379040, 3668672, 4012610, 4585840, 6420176, 6758080, 8025220, 9171680, 12840352, 16050440, 18343360, 25680704, 32100880, 64201760, 128403520]

約数ペア:

[(1, 128403520), (2, 64201760), (4, 32100880), (5, 25680704), (7, 18343360), (8, 16050440), (10, 12840352), (14, 9171680), (16, 8025220), (19, 6758080), (20, 6420176), (28, 4585840), (32, 4012610), (35, 3668672), (38, 3379040), (40, 3210088), (49, 2620480), (56, 2292920), (64, 2006305), (70, 1834336), (76, 1689520), (80, 1605044), (95, 1351616), (98, 1310240), (112, 1146460), (133, 965440), (140, 917168), (152, 844760), (160, 802522), (190, 675808), (196, 655120), (224, 573230), (245, 524096), (266, 482720), (280, 458584), (304, 422380), (320, 401261), (380, 337904), (392, 327560), (431, 297920), (448, 286615), (490, 262048), (532, 241360), (560, 229292), (608, 211190), (665, 193088), (760, 168952), (784, 163780), (862, 148960), (931, 137920), (980, 131024), (1064, 120680), (1120, 114646), (1216, 105595), (1330, 96544), (1520, 84476), (1568, 81890), (1724, 74480), (1862, 68960), (1960, 65512), (2128, 60340), (2155, 59584), (2240, 57323), (2660, 48272), (3017, 42560), (3040, 42238), (3136, 40945), (3448, 37240), (3724, 34480), (3920, 32756), (4256, 30170), (4310, 29792), (4655, 27584), (5320, 24136), (6034, 21280), (6080, 21119), (6896, 18620), (7448, 17240), (7840, 16378), (8189, 15680), (8512, 15085), (8620, 14896), (9310, 13792), (10640, 12068)]