291045890

素因数分解:

$2^1\times 5^1\times {\mathrm{73}}^1\times {\mathrm{398693}}^1$

素因数の和:398773

約数の個数: 16

約数和(自身を含む): 531060408

約数和(自身を除く): 240014518

約数列:

[1, 2, 5, 10, 73, 146, 365, 730, 398693, 797386, 1993465, 3986930, 29104589, 58209178, 145522945, 291045890]

約数ペア:

[(1, 291045890), (2, 145522945), (5, 58209178), (10, 29104589), (73, 3986930), (146, 1993465), (365, 797386), (730, 398693)]