2780500

素因数分解:

$2^2\times 5^3\times {\mathrm{67}}^1\times {\mathrm{83}}^1$

素因数の和:169

約数の個数: 48

約数和(自身を含む): 6237504

約数和(自身を除く): 3457004

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 67, 83, 100, 125, 134, 166, 250, 268, 332, 335, 415, 500, 670, 830, 1340, 1660, 1675, 2075, 3350, 4150, 5561, 6700, 8300, 8375, 10375, 11122, 16750, 20750, 22244, 27805, 33500, 41500, 55610, 111220, 139025, 278050, 556100, 695125, 1390250, 2780500]

約数ペア:

[(1, 2780500), (2, 1390250), (4, 695125), (5, 556100), (10, 278050), (20, 139025), (25, 111220), (50, 55610), (67, 41500), (83, 33500), (100, 27805), (125, 22244), (134, 20750), (166, 16750), (250, 11122), (268, 10375), (332, 8375), (335, 8300), (415, 6700), (500, 5561), (670, 4150), (830, 3350), (1340, 2075), (1660, 1675)]