68829880

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{245821}}^1$

素因数の和:245839

約数の個数: 32

約数和(自身を含む): 176991840

約数和(自身を除く): 108161960

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 245821, 491642, 983284, 1229105, 1720747, 1966568, 2458210, 3441494, 4916420, 6882988, 8603735, 9832840, 13765976, 17207470, 34414940, 68829880]

約数ペア:

[(1, 68829880), (2, 34414940), (4, 17207470), (5, 13765976), (7, 9832840), (8, 8603735), (10, 6882988), (14, 4916420), (20, 3441494), (28, 2458210), (35, 1966568), (40, 1720747), (56, 1229105), (70, 983284), (140, 491642), (280, 245821)]