243750520

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{15121}}^1$

素因数の和:15176

約数の個数: 64

約数和(自身を含む): 609719040

約数和(自身を除く): 365968520

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 31, 40, 52, 62, 65, 104, 124, 130, 155, 248, 260, 310, 403, 520, 620, 806, 1240, 1612, 2015, 3224, 4030, 8060, 15121, 16120, 30242, 60484, 75605, 120968, 151210, 196573, 302420, 393146, 468751, 604840, 786292, 937502, 982865, 1572584, 1875004, 1965730, 2343755, 3750008, 3931460, 4687510, 6093763, 7862920, 9375020, 12187526, 18750040, 24375052, 30468815, 48750104, 60937630, 121875260, 243750520]

約数ペア:

[(1, 243750520), (2, 121875260), (4, 60937630), (5, 48750104), (8, 30468815), (10, 24375052), (13, 18750040), (20, 12187526), (26, 9375020), (31, 7862920), (40, 6093763), (52, 4687510), (62, 3931460), (65, 3750008), (104, 2343755), (124, 1965730), (130, 1875004), (155, 1572584), (248, 982865), (260, 937502), (310, 786292), (403, 604840), (520, 468751), (620, 393146), (806, 302420), (1240, 196573), (1612, 151210), (2015, 120968), (3224, 75605), (4030, 60484), (8060, 30242), (15121, 16120)]