289407560

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{10501}}^1$

素因数の和:10578

約数の個数: 64

約数和(自身を含む): 714556080

約数和(自身を除く): 425148520

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 53, 65, 104, 106, 130, 212, 260, 265, 424, 520, 530, 689, 1060, 1378, 2120, 2756, 3445, 5512, 6890, 10501, 13780, 21002, 27560, 42004, 52505, 84008, 105010, 136513, 210020, 273026, 420040, 546052, 556553, 682565, 1092104, 1113106, 1365130, 2226212, 2730260, 2782765, 4452424, 5460520, 5565530, 7235189, 11131060, 14470378, 22262120, 28940756, 36175945, 57881512, 72351890, 144703780, 289407560]

約数ペア:

[(1, 289407560), (2, 144703780), (4, 72351890), (5, 57881512), (8, 36175945), (10, 28940756), (13, 22262120), (20, 14470378), (26, 11131060), (40, 7235189), (52, 5565530), (53, 5460520), (65, 4452424), (104, 2782765), (106, 2730260), (130, 2226212), (212, 1365130), (260, 1113106), (265, 1092104), (424, 682565), (520, 556553), (530, 546052), (689, 420040), (1060, 273026), (1378, 210020), (2120, 136513), (2756, 105010), (3445, 84008), (5512, 52505), (6890, 42004), (10501, 27560), (13780, 21002)]