85287820

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{151}}^1\times {\mathrm{911}}^1$

素因数の和:1102

約数の個数: 48

約数和(自身を含む): 186310656

約数和(自身を除く): 101022836

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 151, 155, 302, 310, 604, 620, 755, 911, 1510, 1822, 3020, 3644, 4555, 4681, 9110, 9362, 18220, 18724, 23405, 28241, 46810, 56482, 93620, 112964, 137561, 141205, 275122, 282410, 550244, 564820, 687805, 1375610, 2751220, 4264391, 8528782, 17057564, 21321955, 42643910, 85287820]

約数ペア:

[(1, 85287820), (2, 42643910), (4, 21321955), (5, 17057564), (10, 8528782), (20, 4264391), (31, 2751220), (62, 1375610), (124, 687805), (151, 564820), (155, 550244), (302, 282410), (310, 275122), (604, 141205), (620, 137561), (755, 112964), (911, 93620), (1510, 56482), (1822, 46810), (3020, 28241), (3644, 23405), (4555, 18724), (4681, 18220), (9110, 9362)]