72795980

素因数分解:

$2^2\times 5^1\times {\mathrm{83}}^1\times {\mathrm{43853}}^1$

素因数の和:43945

約数の個数: 24

約数和(自身を含む): 154716912

約数和(自身を除く): 81920932

約数列:

[1, 2, 4, 5, 10, 20, 83, 166, 332, 415, 830, 1660, 43853, 87706, 175412, 219265, 438530, 877060, 3639799, 7279598, 14559196, 18198995, 36397990, 72795980]

約数ペア:

[(1, 72795980), (2, 36397990), (4, 18198995), (5, 14559196), (10, 7279598), (20, 3639799), (83, 877060), (166, 438530), (332, 219265), (415, 175412), (830, 87706), (1660, 43853)]