66439360

素因数分解:

$2^6\times 5^1\times {\mathrm{13}}^1\times {\mathrm{15971}}^1$

素因数の和:16001

約数の個数: 56

約数和(自身を含む): 170389296

約数和(自身を除く): 103949936

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 104, 130, 160, 208, 260, 320, 416, 520, 832, 1040, 2080, 4160, 15971, 31942, 63884, 79855, 127768, 159710, 207623, 255536, 319420, 415246, 511072, 638840, 830492, 1022144, 1038115, 1277680, 1660984, 2076230, 2555360, 3321968, 4152460, 5110720, 6643936, 8304920, 13287872, 16609840, 33219680, 66439360]

約数ペア:

[(1, 66439360), (2, 33219680), (4, 16609840), (5, 13287872), (8, 8304920), (10, 6643936), (13, 5110720), (16, 4152460), (20, 3321968), (26, 2555360), (32, 2076230), (40, 1660984), (52, 1277680), (64, 1038115), (65, 1022144), (80, 830492), (104, 638840), (130, 511072), (160, 415246), (208, 319420), (260, 255536), (320, 207623), (416, 159710), (520, 127768), (832, 79855), (1040, 63884), (2080, 31942), (4160, 15971)]