80978560

素因数分解:

$2^7\times 5^1\times {\mathrm{13}}^1\times {\mathrm{9733}}^1$

素因数の和:9765

約数の個数: 64

約数和(自身を含む): 208502280

約数和(自身を除く): 127523720

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, 8320, 9733, 19466, 38932, 48665, 77864, 97330, 126529, 155728, 194660, 253058, 311456, 389320, 506116, 622912, 632645, 778640, 1012232, 1245824, 1265290, 1557280, 2024464, 2530580, 3114560, 4048928, 5061160, 6229120, 8097856, 10122320, 16195712, 20244640, 40489280, 80978560]

約数ペア:

[(1, 80978560), (2, 40489280), (4, 20244640), (5, 16195712), (8, 10122320), (10, 8097856), (13, 6229120), (16, 5061160), (20, 4048928), (26, 3114560), (32, 2530580), (40, 2024464), (52, 1557280), (64, 1265290), (65, 1245824), (80, 1012232), (104, 778640), (128, 632645), (130, 622912), (160, 506116), (208, 389320), (260, 311456), (320, 253058), (416, 194660), (520, 155728), (640, 126529), (832, 97330), (1040, 77864), (1664, 48665), (2080, 38932), (4160, 19466), (8320, 9733)]