81302910

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{208469}}^1$

素因数の和:208492

約数の個数: 32

約数和(自身を含む): 210137760

約数和(自身を除く): 128834850

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390, 208469, 416938, 625407, 1042345, 1250814, 2084690, 2710097, 3127035, 5420194, 6254070, 8130291, 13550485, 16260582, 27100970, 40651455, 81302910]

約数ペア:

[(1, 81302910), (2, 40651455), (3, 27100970), (5, 16260582), (6, 13550485), (10, 8130291), (13, 6254070), (15, 5420194), (26, 3127035), (30, 2710097), (39, 2084690), (65, 1250814), (78, 1042345), (130, 625407), (195, 416938), (390, 208469)]