256146280

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{191}}^1\times {\mathrm{2579}}^1$

素因数の和:2794

約数の個数: 64

約数和(自身を含む): 624153600

約数和(自身を除く): 368007320

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 191, 260, 382, 520, 764, 955, 1528, 1910, 2483, 2579, 3820, 4966, 5158, 7640, 9932, 10316, 12415, 12895, 19864, 20632, 24830, 25790, 33527, 49660, 51580, 67054, 99320, 103160, 134108, 167635, 268216, 335270, 492589, 670540, 985178, 1341080, 1970356, 2462945, 3940712, 4925890, 6403657, 9851780, 12807314, 19703560, 25614628, 32018285, 51229256, 64036570, 128073140, 256146280]

約数ペア:

[(1, 256146280), (2, 128073140), (4, 64036570), (5, 51229256), (8, 32018285), (10, 25614628), (13, 19703560), (20, 12807314), (26, 9851780), (40, 6403657), (52, 4925890), (65, 3940712), (104, 2462945), (130, 1970356), (191, 1341080), (260, 985178), (382, 670540), (520, 492589), (764, 335270), (955, 268216), (1528, 167635), (1910, 134108), (2483, 103160), (2579, 99320), (3820, 67054), (4966, 51580), (5158, 49660), (7640, 33527), (9932, 25790), (10316, 24830), (12415, 20632), (12895, 19864)]