20815669864

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{53}}^1\times {\mathrm{120623}}^1$

素因数の和:120730

約数の個数: 64

約数和(自身を含む): 44553680640

約数和(自身を除く): 23738010776

約数列:

[1, 2, 4, 8, 11, 22, 37, 44, 53, 74, 88, 106, 148, 212, 296, 407, 424, 583, 814, 1166, 1628, 1961, 2332, 3256, 3922, 4664, 7844, 15688, 21571, 43142, 86284, 120623, 172568, 241246, 482492, 964984, 1326853, 2653706, 4463051, 5307412, 6393019, 8926102, 10614824, 12786038, 17852204, 25572076, 35704408, 49093561, 51144152, 70323209, 98187122, 140646418, 196374244, 236541703, 281292836, 392748488, 473083406, 562585672, 946166812, 1892333624, 2601958733, 5203917466, 10407834932, 20815669864]

約数ペア:

[(1, 20815669864), (2, 10407834932), (4, 5203917466), (8, 2601958733), (11, 1892333624), (22, 946166812), (37, 562585672), (44, 473083406), (53, 392748488), (74, 281292836), (88, 236541703), (106, 196374244), (148, 140646418), (212, 98187122), (296, 70323209), (407, 51144152), (424, 49093561), (583, 35704408), (814, 25572076), (1166, 17852204), (1628, 12786038), (1961, 10614824), (2332, 8926102), (3256, 6393019), (3922, 5307412), (4664, 4463051), (7844, 2653706), (15688, 1326853), (21571, 964984), (43142, 482492), (86284, 241246), (120623, 172568)]