64405120

素因数分解:

$2^7\times 5^1\times {\mathrm{13}}^1\times {\mathrm{7741}}^1$

素因数の和:7773

約数の個数: 64

約数和(自身を含む): 165833640

約数和(自身を除く): 101428520

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 104, 128, 130, 160, 208, 260, 320, 416, 520, 640, 832, 1040, 1664, 2080, 4160, 7741, 8320, 15482, 30964, 38705, 61928, 77410, 100633, 123856, 154820, 201266, 247712, 309640, 402532, 495424, 503165, 619280, 805064, 990848, 1006330, 1238560, 1610128, 2012660, 2477120, 3220256, 4025320, 4954240, 6440512, 8050640, 12881024, 16101280, 32202560, 64405120]

約数ペア:

[(1, 64405120), (2, 32202560), (4, 16101280), (5, 12881024), (8, 8050640), (10, 6440512), (13, 4954240), (16, 4025320), (20, 3220256), (26, 2477120), (32, 2012660), (40, 1610128), (52, 1238560), (64, 1006330), (65, 990848), (80, 805064), (104, 619280), (128, 503165), (130, 495424), (160, 402532), (208, 309640), (260, 247712), (320, 201266), (416, 154820), (520, 123856), (640, 100633), (832, 77410), (1040, 61928), (1664, 38705), (2080, 30964), (4160, 15482), (7741, 8320)]