1820800780

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{173}}^1\times {\mathrm{27697}}^1$

素因数の和:27898

約数の個数: 48

約数和(自身を含む): 4048339680

約数和(自身を除く): 2227538900

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 173, 190, 346, 380, 692, 865, 1730, 3287, 3460, 6574, 13148, 16435, 27697, 32870, 55394, 65740, 110788, 138485, 276970, 526243, 553940, 1052486, 2104972, 2631215, 4791581, 5262430, 9583162, 10524860, 19166324, 23957905, 47915810, 91040039, 95831620, 182080078, 364160156, 455200195, 910400390, 1820800780]

約数ペア:

[(1, 1820800780), (2, 910400390), (4, 455200195), (5, 364160156), (10, 182080078), (19, 95831620), (20, 91040039), (38, 47915810), (76, 23957905), (95, 19166324), (173, 10524860), (190, 9583162), (346, 5262430), (380, 4791581), (692, 2631215), (865, 2104972), (1730, 1052486), (3287, 553940), (3460, 526243), (6574, 276970), (13148, 138485), (16435, 110788), (27697, 65740), (32870, 55394)]