66044420

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{389}}^1\times {\mathrm{653}}^1$

素因数の和:1064

約数の個数: 48

約数和(自身を含む): 149975280

約数和(自身を除く): 83930860

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 389, 653, 778, 1306, 1556, 1945, 2612, 3265, 3890, 5057, 6530, 7780, 8489, 10114, 13060, 16978, 20228, 25285, 33956, 42445, 50570, 84890, 101140, 169780, 254017, 508034, 1016068, 1270085, 2540170, 3302221, 5080340, 6604442, 13208884, 16511105, 33022210, 66044420]

約数ペア:

[(1, 66044420), (2, 33022210), (4, 16511105), (5, 13208884), (10, 6604442), (13, 5080340), (20, 3302221), (26, 2540170), (52, 1270085), (65, 1016068), (130, 508034), (260, 254017), (389, 169780), (653, 101140), (778, 84890), (1306, 50570), (1556, 42445), (1945, 33956), (2612, 25285), (3265, 20228), (3890, 16978), (5057, 13060), (6530, 10114), (7780, 8489)]