1279740020

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1483}}^1\times {\mathrm{3319}}^1$

素因数の和:4824

約数の個数: 48

約数和(自身を含む): 2897005440

約数和(自身を除く): 1617265420

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 1483, 2966, 3319, 5932, 6638, 7415, 13276, 14830, 16595, 19279, 29660, 33190, 38558, 43147, 66380, 77116, 86294, 96395, 172588, 192790, 215735, 385580, 431470, 862940, 4922077, 9844154, 19688308, 24610385, 49220770, 63987001, 98441540, 127974002, 255948004, 319935005, 639870010, 1279740020]

約数ペア:

[(1, 1279740020), (2, 639870010), (4, 319935005), (5, 255948004), (10, 127974002), (13, 98441540), (20, 63987001), (26, 49220770), (52, 24610385), (65, 19688308), (130, 9844154), (260, 4922077), (1483, 862940), (2966, 431470), (3319, 385580), (5932, 215735), (6638, 192790), (7415, 172588), (13276, 96395), (14830, 86294), (16595, 77116), (19279, 66380), (29660, 43147), (33190, 38558)]