208661570

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{263}}^1\times {\mathrm{359}}^1$

素因数の和:659

約数の個数: 64

約数和(自身を含む): 431101440

約数和(自身を除く): 222439870

約数列:

[1, 2, 5, 10, 13, 17, 26, 34, 65, 85, 130, 170, 221, 263, 359, 442, 526, 718, 1105, 1315, 1795, 2210, 2630, 3419, 3590, 4471, 4667, 6103, 6838, 8942, 9334, 12206, 17095, 22355, 23335, 30515, 34190, 44710, 46670, 58123, 61030, 79339, 94417, 116246, 158678, 188834, 290615, 396695, 472085, 581230, 793390, 944170, 1227421, 1605089, 2454842, 3210178, 6137105, 8025445, 12274210, 16050890, 20866157, 41732314, 104330785, 208661570]

約数ペア:

[(1, 208661570), (2, 104330785), (5, 41732314), (10, 20866157), (13, 16050890), (17, 12274210), (26, 8025445), (34, 6137105), (65, 3210178), (85, 2454842), (130, 1605089), (170, 1227421), (221, 944170), (263, 793390), (359, 581230), (442, 472085), (526, 396695), (718, 290615), (1105, 188834), (1315, 158678), (1795, 116246), (2210, 94417), (2630, 79339), (3419, 61030), (3590, 58123), (4471, 46670), (4667, 44710), (6103, 34190), (6838, 30515), (8942, 23335), (9334, 22355), (12206, 17095)]