74987120

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{72103}}^1$

素因数の和:72129

約数の個数: 40

約数和(自身を含む): 187758816

約数和(自身を除く): 112771696

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 72103, 144206, 288412, 360515, 576824, 721030, 937339, 1153648, 1442060, 1874678, 2884120, 3749356, 4686695, 5768240, 7498712, 9373390, 14997424, 18746780, 37493560, 74987120]

約数ペア:

[(1, 74987120), (2, 37493560), (4, 18746780), (5, 14997424), (8, 9373390), (10, 7498712), (13, 5768240), (16, 4686695), (20, 3749356), (26, 2884120), (40, 1874678), (52, 1442060), (65, 1153648), (80, 937339), (104, 721030), (130, 576824), (208, 360515), (260, 288412), (520, 144206), (1040, 72103)]