79581620

素因数分解:

$2^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{193}}^1\times {\mathrm{389}}^1$

素因数の和:644

約数の個数: 48

約数和(自身を含む): 171596880

約数和(自身を除く): 92015260

約数列:

[1, 2, 4, 5, 10, 20, 53, 106, 193, 212, 265, 386, 389, 530, 772, 778, 965, 1060, 1556, 1930, 1945, 3860, 3890, 7780, 10229, 20458, 20617, 40916, 41234, 51145, 75077, 82468, 102290, 103085, 150154, 204580, 206170, 300308, 375385, 412340, 750770, 1501540, 3979081, 7958162, 15916324, 19895405, 39790810, 79581620]

約数ペア:

[(1, 79581620), (2, 39790810), (4, 19895405), (5, 15916324), (10, 7958162), (20, 3979081), (53, 1501540), (106, 750770), (193, 412340), (212, 375385), (265, 300308), (386, 206170), (389, 204580), (530, 150154), (772, 103085), (778, 102290), (965, 82468), (1060, 75077), (1556, 51145), (1930, 41234), (1945, 40916), (3860, 20617), (3890, 20458), (7780, 10229)]