129070340

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{921931}}^1$

素因数の和:921947

約数の個数: 24

約数和(自身を含む): 309769152

約数和(自身を除く): 180698812

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 921931, 1843862, 3687724, 4609655, 6453517, 9219310, 12907034, 18438620, 25814068, 32267585, 64535170, 129070340]

約数ペア:

[(1, 129070340), (2, 64535170), (4, 32267585), (5, 25814068), (7, 18438620), (10, 12907034), (14, 9219310), (20, 6453517), (28, 4609655), (35, 3687724), (70, 1843862), (140, 921931)]