257439780

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{110017}}^1$

素因数の和:110045

約数の個数: 72

約数和(自身を含む): 840977592

約数和(自身を除く): 583537812

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 26, 30, 36, 39, 45, 52, 60, 65, 78, 90, 117, 130, 156, 180, 195, 234, 260, 390, 468, 585, 780, 1170, 2340, 110017, 220034, 330051, 440068, 550085, 660102, 990153, 1100170, 1320204, 1430221, 1650255, 1980306, 2200340, 2860442, 3300510, 3960612, 4290663, 4950765, 5720884, 6601020, 7151105, 8581326, 9901530, 12871989, 14302210, 17162652, 19803060, 21453315, 25743978, 28604420, 42906630, 51487956, 64359945, 85813260, 128719890, 257439780]

約数ペア:

[(1, 257439780), (2, 128719890), (3, 85813260), (4, 64359945), (5, 51487956), (6, 42906630), (9, 28604420), (10, 25743978), (12, 21453315), (13, 19803060), (15, 17162652), (18, 14302210), (20, 12871989), (26, 9901530), (30, 8581326), (36, 7151105), (39, 6601020), (45, 5720884), (52, 4950765), (60, 4290663), (65, 3960612), (78, 3300510), (90, 2860442), (117, 2200340), (130, 1980306), (156, 1650255), (180, 1430221), (195, 1320204), (234, 1100170), (260, 990153), (390, 660102), (468, 550085), (585, 440068), (780, 330051), (1170, 220034), (2340, 110017)]