4050021040

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{125621}}^1$

素因数の和:125678

約数の個数: 80

約数和(自身を含む): 10467830016

約数和(自身を除く): 6417808976

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 31, 40, 52, 62, 65, 80, 104, 124, 130, 155, 208, 248, 260, 310, 403, 496, 520, 620, 806, 1040, 1240, 1612, 2015, 2480, 3224, 4030, 6448, 8060, 16120, 32240, 125621, 251242, 502484, 628105, 1004968, 1256210, 1633073, 2009936, 2512420, 3266146, 3894251, 5024840, 6532292, 7788502, 8165365, 10049680, 13064584, 15577004, 16330730, 19471255, 26129168, 31154008, 32661460, 38942510, 50625263, 62308016, 65322920, 77885020, 101250526, 130645840, 155770040, 202501052, 253126315, 311540080, 405002104, 506252630, 810004208, 1012505260, 2025010520, 4050021040]

約数ペア:

[(1, 4050021040), (2, 2025010520), (4, 1012505260), (5, 810004208), (8, 506252630), (10, 405002104), (13, 311540080), (16, 253126315), (20, 202501052), (26, 155770040), (31, 130645840), (40, 101250526), (52, 77885020), (62, 65322920), (65, 62308016), (80, 50625263), (104, 38942510), (124, 32661460), (130, 31154008), (155, 26129168), (208, 19471255), (248, 16330730), (260, 15577004), (310, 13064584), (403, 10049680), (496, 8165365), (520, 7788502), (620, 6532292), (806, 5024840), (1040, 3894251), (1240, 3266146), (1612, 2512420), (2015, 2009936), (2480, 1633073), (3224, 1256210), (4030, 1004968), (6448, 628105), (8060, 502484), (16120, 251242), (32240, 125621)]