219720280

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^2\times {\mathrm{32503}}^1$

素因数の和:32540

約数の個数: 48

約数和(自身を含む): 535340880

約数和(自身を除く): 315620600

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 169, 260, 338, 520, 676, 845, 1352, 1690, 3380, 6760, 32503, 65006, 130012, 162515, 260024, 325030, 422539, 650060, 845078, 1300120, 1690156, 2112695, 3380312, 4225390, 5493007, 8450780, 10986014, 16901560, 21972028, 27465035, 43944056, 54930070, 109860140, 219720280]

約数ペア:

[(1, 219720280), (2, 109860140), (4, 54930070), (5, 43944056), (8, 27465035), (10, 21972028), (13, 16901560), (20, 10986014), (26, 8450780), (40, 5493007), (52, 4225390), (65, 3380312), (104, 2112695), (130, 1690156), (169, 1300120), (260, 845078), (338, 650060), (520, 422539), (676, 325030), (845, 260024), (1352, 162515), (1690, 130012), (3380, 65006), (6760, 32503)]