31858840

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{197}}^1\times {\mathrm{311}}^1$

素因数の和:532

約数の個数: 64

約数和(自身を含む): 77837760

約数和(自身を除く): 45978920

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 197, 260, 311, 394, 520, 622, 788, 985, 1244, 1555, 1576, 1970, 2488, 2561, 3110, 3940, 4043, 5122, 6220, 7880, 8086, 10244, 12440, 12805, 16172, 20215, 20488, 25610, 32344, 40430, 51220, 61267, 80860, 102440, 122534, 161720, 245068, 306335, 490136, 612670, 796471, 1225340, 1592942, 2450680, 3185884, 3982355, 6371768, 7964710, 15929420, 31858840]

約数ペア:

[(1, 31858840), (2, 15929420), (4, 7964710), (5, 6371768), (8, 3982355), (10, 3185884), (13, 2450680), (20, 1592942), (26, 1225340), (40, 796471), (52, 612670), (65, 490136), (104, 306335), (130, 245068), (197, 161720), (260, 122534), (311, 102440), (394, 80860), (520, 61267), (622, 51220), (788, 40430), (985, 32344), (1244, 25610), (1555, 20488), (1576, 20215), (1970, 16172), (2488, 12805), (2561, 12440), (3110, 10244), (3940, 8086), (4043, 7880), (5122, 6220)]