1991036551690

素因数分解:

$2^1\times 5^1\times {\mathrm{89}}^1\times {\mathrm{223}}^1\times {\mathrm{311}}^1\times {\mathrm{32257}}^1$

素因数の和:32887

約数の個数: 64

約数和(自身を含む): 3652204308480

約数和(自身を除く): 1661167756790

約数列:

[1, 2, 5, 10, 89, 178, 223, 311, 445, 446, 622, 890, 1115, 1555, 2230, 3110, 19847, 27679, 32257, 39694, 55358, 64514, 69353, 99235, 138395, 138706, 161285, 198470, 276790, 322570, 346765, 693530, 2870873, 5741746, 6172417, 7193311, 10031927, 12344834, 14354365, 14386622, 20063854, 28708730, 30862085, 35966555, 50159635, 61724170, 71933110, 100319270, 640204679, 892841503, 1280409358, 1785683006, 2237119721, 3201023395, 4464207515, 4474239442, 6402046790, 8928415030, 11185598605, 22371197210, 199103655169, 398207310338, 995518275845, 1991036551690]

約数ペア:

[(1, 1991036551690), (2, 995518275845), (5, 398207310338), (10, 199103655169), (89, 22371197210), (178, 11185598605), (223, 8928415030), (311, 6402046790), (445, 4474239442), (446, 4464207515), (622, 3201023395), (890, 2237119721), (1115, 1785683006), (1555, 1280409358), (2230, 892841503), (3110, 640204679), (19847, 100319270), (27679, 71933110), (32257, 61724170), (39694, 50159635), (55358, 35966555), (64514, 30862085), (69353, 28708730), (99235, 20063854), (138395, 14386622), (138706, 14354365), (161285, 12344834), (198470, 10031927), (276790, 7193311), (322570, 6172417), (346765, 5741746), (693530, 2870873)]