771232020

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{988759}}^1$

素因数の和:988784

約数の個数: 48

約数和(自身を含む): 2325563520

約数和(自身を除く): 1554331500

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780, 988759, 1977518, 2966277, 3955036, 4943795, 5932554, 9887590, 11865108, 12853867, 14831385, 19775180, 25707734, 29662770, 38561601, 51415468, 59325540, 64269335, 77123202, 128538670, 154246404, 192808005, 257077340, 385616010, 771232020]

約数ペア:

[(1, 771232020), (2, 385616010), (3, 257077340), (4, 192808005), (5, 154246404), (6, 128538670), (10, 77123202), (12, 64269335), (13, 59325540), (15, 51415468), (20, 38561601), (26, 29662770), (30, 25707734), (39, 19775180), (52, 14831385), (60, 12853867), (65, 11865108), (78, 9887590), (130, 5932554), (156, 4943795), (195, 3955036), (260, 2966277), (390, 1977518), (780, 988759)]