212134840

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{311963}}^1$

素因数の和:311991

約数の個数: 32

約数和(自身を含む): 505381680

約数和(自身を除く): 293246840

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 680, 311963, 623926, 1247852, 1559815, 2495704, 3119630, 5303371, 6239260, 10606742, 12478520, 21213484, 26516855, 42426968, 53033710, 106067420, 212134840]

約数ペア:

[(1, 212134840), (2, 106067420), (4, 53033710), (5, 42426968), (8, 26516855), (10, 21213484), (17, 12478520), (20, 10606742), (34, 6239260), (40, 5303371), (68, 3119630), (85, 2495704), (136, 1559815), (170, 1247852), (340, 623926), (680, 311963)]