16389620

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^3\times {\mathrm{373}}^1$

素因数の和:421

約数の個数: 48

約数和(自身を含む): 37385040

約数和(自身を除く): 20995420

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 169, 260, 338, 373, 676, 746, 845, 1492, 1690, 1865, 2197, 3380, 3730, 4394, 4849, 7460, 8788, 9698, 10985, 19396, 21970, 24245, 43940, 48490, 63037, 96980, 126074, 252148, 315185, 630370, 819481, 1260740, 1638962, 3277924, 4097405, 8194810, 16389620]

約数ペア:

[(1, 16389620), (2, 8194810), (4, 4097405), (5, 3277924), (10, 1638962), (13, 1260740), (20, 819481), (26, 630370), (52, 315185), (65, 252148), (130, 126074), (169, 96980), (260, 63037), (338, 48490), (373, 43940), (676, 24245), (746, 21970), (845, 19396), (1492, 10985), (1690, 9698), (1865, 8788), (2197, 7460), (3380, 4849), (3730, 4394)]