4126960

素因数分解:

$2^4\times 5^1\times {\mathrm{79}}^1\times {\mathrm{653}}^1$

素因数の和:745

約数の個数: 40

約数和(自身を含む): 9731520

約数和(自身を除く): 5604560

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 79, 80, 158, 316, 395, 632, 653, 790, 1264, 1306, 1580, 2612, 3160, 3265, 5224, 6320, 6530, 10448, 13060, 26120, 51587, 52240, 103174, 206348, 257935, 412696, 515870, 825392, 1031740, 2063480, 4126960]

約数ペア:

[(1, 4126960), (2, 2063480), (4, 1031740), (5, 825392), (8, 515870), (10, 412696), (16, 257935), (20, 206348), (40, 103174), (79, 52240), (80, 51587), (158, 26120), (316, 13060), (395, 10448), (632, 6530), (653, 6320), (790, 5224), (1264, 3265), (1306, 3160), (1580, 2612)]