2017118720

素因数分解:

$2^9\times 5^1\times {\mathrm{61}}^1\times {\mathrm{12917}}^1$

素因数の和:13001

約数の個数: 80

約数和(自身を含む): 4916022408

約数和(自身を除く): 2898903688

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 61, 64, 80, 122, 128, 160, 244, 256, 305, 320, 488, 512, 610, 640, 976, 1220, 1280, 1952, 2440, 2560, 3904, 4880, 7808, 9760, 12917, 15616, 19520, 25834, 31232, 39040, 51668, 64585, 78080, 103336, 129170, 156160, 206672, 258340, 413344, 516680, 787937, 826688, 1033360, 1575874, 1653376, 2066720, 3151748, 3306752, 3939685, 4133440, 6303496, 6613504, 7879370, 8266880, 12606992, 15758740, 16533760, 25213984, 31517480, 33067520, 50427968, 63034960, 100855936, 126069920, 201711872, 252139840, 403423744, 504279680, 1008559360, 2017118720]

約数ペア:

[(1, 2017118720), (2, 1008559360), (4, 504279680), (5, 403423744), (8, 252139840), (10, 201711872), (16, 126069920), (20, 100855936), (32, 63034960), (40, 50427968), (61, 33067520), (64, 31517480), (80, 25213984), (122, 16533760), (128, 15758740), (160, 12606992), (244, 8266880), (256, 7879370), (305, 6613504), (320, 6303496), (488, 4133440), (512, 3939685), (610, 3306752), (640, 3151748), (976, 2066720), (1220, 1653376), (1280, 1575874), (1952, 1033360), (2440, 826688), (2560, 787937), (3904, 516680), (4880, 413344), (7808, 258340), (9760, 206672), (12917, 156160), (15616, 129170), (19520, 103336), (25834, 78080), (31232, 64585), (39040, 51668)]