72620840

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{44281}}^1$

素因数の和:44333

約数の個数: 32

約数和(自身を含む): 167385960

約数和(自身を除く): 94765120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 44281, 88562, 177124, 221405, 354248, 442810, 885620, 1771240, 1815521, 3631042, 7262084, 9077605, 14524168, 18155210, 36310420, 72620840]

約数ペア:

[(1, 72620840), (2, 36310420), (4, 18155210), (5, 14524168), (8, 9077605), (10, 7262084), (20, 3631042), (40, 1815521), (41, 1771240), (82, 885620), (164, 442810), (205, 354248), (328, 221405), (410, 177124), (820, 88562), (1640, 44281)]