687481964

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{313}}^1\times {\mathrm{42239}}^1$

素因数の和:42569

約数の個数: 24

約数和(自身を含む): 1299809280

約数和(自身を除く): 612327316

約数列:

[1, 2, 4, 13, 26, 52, 313, 626, 1252, 4069, 8138, 16276, 42239, 84478, 168956, 549107, 1098214, 2196428, 13220807, 26441614, 52883228, 171870491, 343740982, 687481964]

約数ペア:

[(1, 687481964), (2, 343740982), (4, 171870491), (13, 52883228), (26, 26441614), (52, 13220807), (313, 2196428), (626, 1098214), (1252, 549107), (4069, 168956), (8138, 84478), (16276, 42239)]