251313985

素因数分解:

$5^1\times {\mathrm{13}}^2\times {\mathrm{23}}^1\times {\mathrm{67}}^1\times {\mathrm{193}}^1$

素因数の和:314

約数の個数: 48

約数和(自身を含む): 347635584

約数和(自身を除く): 96321599

約数列:

[1, 5, 13, 23, 65, 67, 115, 169, 193, 299, 335, 845, 871, 965, 1495, 1541, 2509, 3887, 4355, 4439, 7705, 11323, 12545, 12931, 19435, 20033, 22195, 32617, 56615, 57707, 64655, 100165, 163085, 168103, 260429, 288535, 297413, 750191, 840515, 1302145, 1487065, 2185339, 3750955, 3866369, 10926695, 19331845, 50262797, 251313985]

約数ペア:

[(1, 251313985), (5, 50262797), (13, 19331845), (23, 10926695), (65, 3866369), (67, 3750955), (115, 2185339), (169, 1487065), (193, 1302145), (299, 840515), (335, 750191), (845, 297413), (871, 288535), (965, 260429), (1495, 168103), (1541, 163085), (2509, 100165), (3887, 64655), (4355, 57707), (4439, 56615), (7705, 32617), (11323, 22195), (12545, 20033), (12931, 19435)]