2155011720

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{485363}}^1$

素因数の和:485414

約数の個数: 64

約数和(自身を含む): 6639779520

約数和(自身を除く): 4484767800

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 37, 40, 60, 74, 111, 120, 148, 185, 222, 296, 370, 444, 555, 740, 888, 1110, 1480, 2220, 4440, 485363, 970726, 1456089, 1941452, 2426815, 2912178, 3882904, 4853630, 5824356, 7280445, 9707260, 11648712, 14560890, 17958431, 19414520, 29121780, 35916862, 53875293, 58243560, 71833724, 89792155, 107750586, 143667448, 179584310, 215501172, 269376465, 359168620, 431002344, 538752930, 718337240, 1077505860, 2155011720]

約数ペア:

[(1, 2155011720), (2, 1077505860), (3, 718337240), (4, 538752930), (5, 431002344), (6, 359168620), (8, 269376465), (10, 215501172), (12, 179584310), (15, 143667448), (20, 107750586), (24, 89792155), (30, 71833724), (37, 58243560), (40, 53875293), (60, 35916862), (74, 29121780), (111, 19414520), (120, 17958431), (148, 14560890), (185, 11648712), (222, 9707260), (296, 7280445), (370, 5824356), (444, 4853630), (555, 3882904), (740, 2912178), (888, 2426815), (1110, 1941452), (1480, 1456089), (2220, 970726), (4440, 485363)]