25819620

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{653}}^1\times {\mathrm{659}}^1$

素因数の和:1324

約数の個数: 48

約数和(自身を含む): 72515520

約数和(自身を除く): 46695900

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 653, 659, 1306, 1318, 1959, 1977, 2612, 2636, 3265, 3295, 3918, 3954, 6530, 6590, 7836, 7908, 9795, 9885, 13060, 13180, 19590, 19770, 39180, 39540, 430327, 860654, 1290981, 1721308, 2151635, 2581962, 4303270, 5163924, 6454905, 8606540, 12909810, 25819620]

約数ペア:

[(1, 25819620), (2, 12909810), (3, 8606540), (4, 6454905), (5, 5163924), (6, 4303270), (10, 2581962), (12, 2151635), (15, 1721308), (20, 1290981), (30, 860654), (60, 430327), (653, 39540), (659, 39180), (1306, 19770), (1318, 19590), (1959, 13180), (1977, 13060), (2612, 9885), (2636, 9795), (3265, 7908), (3295, 7836), (3918, 6590), (3954, 6530)]