15929420

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{197}}^1\times {\mathrm{311}}^1$

素因数の和:530

約数の個数: 48

約数和(自身を含む): 36324288

約数和(自身を除く): 20394868

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 197, 260, 311, 394, 622, 788, 985, 1244, 1555, 1970, 2561, 3110, 3940, 4043, 5122, 6220, 8086, 10244, 12805, 16172, 20215, 25610, 40430, 51220, 61267, 80860, 122534, 245068, 306335, 612670, 796471, 1225340, 1592942, 3185884, 3982355, 7964710, 15929420]

約数ペア:

[(1, 15929420), (2, 7964710), (4, 3982355), (5, 3185884), (10, 1592942), (13, 1225340), (20, 796471), (26, 612670), (52, 306335), (65, 245068), (130, 122534), (197, 80860), (260, 61267), (311, 51220), (394, 40430), (622, 25610), (788, 20215), (985, 16172), (1244, 12805), (1555, 10244), (1970, 8086), (2561, 6220), (3110, 5122), (3940, 4043)]