61505080

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{277}}^1$

素因数の和:369

約数の個数: 128

約数和(自身を含む): 173738880

約数和(自身を除く): 112233800

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 20, 26, 28, 35, 40, 52, 56, 61, 65, 70, 91, 104, 122, 130, 140, 182, 244, 260, 277, 280, 305, 364, 427, 455, 488, 520, 554, 610, 728, 793, 854, 910, 1108, 1220, 1385, 1586, 1708, 1820, 1939, 2135, 2216, 2440, 2770, 3172, 3416, 3601, 3640, 3878, 3965, 4270, 5540, 5551, 6344, 7202, 7756, 7930, 8540, 9695, 11080, 11102, 14404, 15512, 15860, 16897, 17080, 18005, 19390, 22204, 25207, 27755, 28808, 31720, 33794, 36010, 38780, 44408, 50414, 55510, 67588, 72020, 77560, 84485, 100828, 111020, 118279, 126035, 135176, 144040, 168970, 201656, 219661, 222040, 236558, 252070, 337940, 439322, 473116, 504140, 591395, 675880, 878644, 946232, 1008280, 1098305, 1182790, 1537627, 1757288, 2196610, 2365580, 3075254, 4393220, 4731160, 6150508, 7688135, 8786440, 12301016, 15376270, 30752540, 61505080]

約数ペア:

[(1, 61505080), (2, 30752540), (4, 15376270), (5, 12301016), (7, 8786440), (8, 7688135), (10, 6150508), (13, 4731160), (14, 4393220), (20, 3075254), (26, 2365580), (28, 2196610), (35, 1757288), (40, 1537627), (52, 1182790), (56, 1098305), (61, 1008280), (65, 946232), (70, 878644), (91, 675880), (104, 591395), (122, 504140), (130, 473116), (140, 439322), (182, 337940), (244, 252070), (260, 236558), (277, 222040), (280, 219661), (305, 201656), (364, 168970), (427, 144040), (455, 135176), (488, 126035), (520, 118279), (554, 111020), (610, 100828), (728, 84485), (793, 77560), (854, 72020), (910, 67588), (1108, 55510), (1220, 50414), (1385, 44408), (1586, 38780), (1708, 36010), (1820, 33794), (1939, 31720), (2135, 28808), (2216, 27755), (2440, 25207), (2770, 22204), (3172, 19390), (3416, 18005), (3601, 17080), (3640, 16897), (3878, 15860), (3965, 15512), (4270, 14404), (5540, 11102), (5551, 11080), (6344, 9695), (7202, 8540), (7756, 7930)]