64757680

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{877}}^1$

素因数の和:974

約数の個数: 80

約数和(自身を含む): 164614464

約数和(自身を除く): 99856784

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 71, 80, 104, 130, 142, 208, 260, 284, 355, 520, 568, 710, 877, 923, 1040, 1136, 1420, 1754, 1846, 2840, 3508, 3692, 4385, 4615, 5680, 7016, 7384, 8770, 9230, 11401, 14032, 14768, 17540, 18460, 22802, 35080, 36920, 45604, 57005, 62267, 70160, 73840, 91208, 114010, 124534, 182416, 228020, 249068, 311335, 456040, 498136, 622670, 809471, 912080, 996272, 1245340, 1618942, 2490680, 3237884, 4047355, 4981360, 6475768, 8094710, 12951536, 16189420, 32378840, 64757680]

約数ペア:

[(1, 64757680), (2, 32378840), (4, 16189420), (5, 12951536), (8, 8094710), (10, 6475768), (13, 4981360), (16, 4047355), (20, 3237884), (26, 2490680), (40, 1618942), (52, 1245340), (65, 996272), (71, 912080), (80, 809471), (104, 622670), (130, 498136), (142, 456040), (208, 311335), (260, 249068), (284, 228020), (355, 182416), (520, 124534), (568, 114010), (710, 91208), (877, 73840), (923, 70160), (1040, 62267), (1136, 57005), (1420, 45604), (1754, 36920), (1846, 35080), (2840, 22802), (3508, 18460), (3692, 17540), (4385, 14768), (4615, 14032), (5680, 11401), (7016, 9230), (7384, 8770)]