278987930

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{93307}}^1$

素因数の和:93350

約数の個数: 32

約数和(自身を含む): 564326784

約数和(自身を除く): 285338854

約数列:

[1, 2, 5, 10, 13, 23, 26, 46, 65, 115, 130, 230, 299, 598, 1495, 2990, 93307, 186614, 466535, 933070, 1212991, 2146061, 2425982, 4292122, 6064955, 10730305, 12129910, 21460610, 27898793, 55797586, 139493965, 278987930]

約数ペア:

[(1, 278987930), (2, 139493965), (5, 55797586), (10, 27898793), (13, 21460610), (23, 12129910), (26, 10730305), (46, 6064955), (65, 4292122), (115, 2425982), (130, 2146061), (230, 1212991), (299, 933070), (598, 466535), (1495, 186614), (2990, 93307)]