28045264

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{1237}}^1$

素因数の和:1367

約数の個数: 40

約数和(自身を含む): 59102120

約数和(自身を除く): 31056856

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 109, 208, 218, 436, 872, 1237, 1417, 1744, 2474, 2834, 4948, 5668, 9896, 11336, 16081, 19792, 22672, 32162, 64324, 128648, 134833, 257296, 269666, 539332, 1078664, 1752829, 2157328, 3505658, 7011316, 14022632, 28045264]

約数ペア:

[(1, 28045264), (2, 14022632), (4, 7011316), (8, 3505658), (13, 2157328), (16, 1752829), (26, 1078664), (52, 539332), (104, 269666), (109, 257296), (208, 134833), (218, 128648), (436, 64324), (872, 32162), (1237, 22672), (1417, 19792), (1744, 16081), (2474, 11336), (2834, 9896), (4948, 5668)]