780770960

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{314827}}^1$

素因数の和:314871

約数の個数: 40

約数和(自身を含む): 1873856256

約数和(自身を除く): 1093085296

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 2480, 314827, 629654, 1259308, 1574135, 2518616, 3148270, 5037232, 6296540, 9759637, 12593080, 19519274, 25186160, 39038548, 48798185, 78077096, 97596370, 156154192, 195192740, 390385480, 780770960]

約数ペア:

[(1, 780770960), (2, 390385480), (4, 195192740), (5, 156154192), (8, 97596370), (10, 78077096), (16, 48798185), (20, 39038548), (31, 25186160), (40, 19519274), (62, 12593080), (80, 9759637), (124, 6296540), (155, 5037232), (248, 3148270), (310, 2518616), (496, 1574135), (620, 1259308), (1240, 629654), (2480, 314827)]