277260280

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{20327}}^1$

素因数の和:20380

約数の個数: 64

約数和(自身を含む): 702535680

約数和(自身を除く): 425275400

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 31, 40, 44, 55, 62, 88, 110, 124, 155, 220, 248, 310, 341, 440, 620, 682, 1240, 1364, 1705, 2728, 3410, 6820, 13640, 20327, 40654, 81308, 101635, 162616, 203270, 223597, 406540, 447194, 630137, 813080, 894388, 1117985, 1260274, 1788776, 2235970, 2520548, 3150685, 4471940, 5041096, 6301370, 6931507, 8943880, 12602740, 13863014, 25205480, 27726028, 34657535, 55452056, 69315070, 138630140, 277260280]

約数ペア:

[(1, 277260280), (2, 138630140), (4, 69315070), (5, 55452056), (8, 34657535), (10, 27726028), (11, 25205480), (20, 13863014), (22, 12602740), (31, 8943880), (40, 6931507), (44, 6301370), (55, 5041096), (62, 4471940), (88, 3150685), (110, 2520548), (124, 2235970), (155, 1788776), (220, 1260274), (248, 1117985), (310, 894388), (341, 813080), (440, 630137), (620, 447194), (682, 406540), (1240, 223597), (1364, 203270), (1705, 162616), (2728, 101635), (3410, 81308), (6820, 40654), (13640, 20327)]