31997680

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{2797}}^1$

素因数の和:2834

約数の個数: 80

約数和(自身を含む): 87431904

約数和(自身を除く): 55434224

約数列:

[1, 2, 4, 5, 8, 10, 11, 13, 16, 20, 22, 26, 40, 44, 52, 55, 65, 80, 88, 104, 110, 130, 143, 176, 208, 220, 260, 286, 440, 520, 572, 715, 880, 1040, 1144, 1430, 2288, 2797, 2860, 5594, 5720, 11188, 11440, 13985, 22376, 27970, 30767, 36361, 44752, 55940, 61534, 72722, 111880, 123068, 145444, 153835, 181805, 223760, 246136, 290888, 307670, 363610, 399971, 492272, 581776, 615340, 727220, 799942, 1230680, 1454440, 1599884, 1999855, 2461360, 2908880, 3199768, 3999710, 6399536, 7999420, 15998840, 31997680]

約数ペア:

[(1, 31997680), (2, 15998840), (4, 7999420), (5, 6399536), (8, 3999710), (10, 3199768), (11, 2908880), (13, 2461360), (16, 1999855), (20, 1599884), (22, 1454440), (26, 1230680), (40, 799942), (44, 727220), (52, 615340), (55, 581776), (65, 492272), (80, 399971), (88, 363610), (104, 307670), (110, 290888), (130, 246136), (143, 223760), (176, 181805), (208, 153835), (220, 145444), (260, 123068), (286, 111880), (440, 72722), (520, 61534), (572, 55940), (715, 44752), (880, 36361), (1040, 30767), (1144, 27970), (1430, 22376), (2288, 13985), (2797, 11440), (2860, 11188), (5594, 5720)]