290871285

素因数分解:

$3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{12919}}^1$

素因数の和:13025

約数の個数: 32

約数和(自身を含む): 496128000

約数和(自身を除く): 205256715

約数列:

[1, 3, 5, 15, 19, 57, 79, 95, 237, 285, 395, 1185, 1501, 4503, 7505, 12919, 22515, 38757, 64595, 193785, 245461, 736383, 1020601, 1227305, 3061803, 3681915, 5103005, 15309015, 19391419, 58174257, 96957095, 290871285]

約数ペア:

[(1, 290871285), (3, 96957095), (5, 58174257), (15, 19391419), (19, 15309015), (57, 5103005), (79, 3681915), (95, 3061803), (237, 1227305), (285, 1020601), (395, 736383), (1185, 245461), (1501, 193785), (4503, 64595), (7505, 38757), (12919, 22515)]