298291220

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{139}}^1\times {\mathrm{1759}}^1$

素因数の和:1968

約数の個数: 48

約数和(自身を含む): 641625600

約数和(自身を除く): 343334380

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 139, 244, 278, 305, 556, 610, 695, 1220, 1390, 1759, 2780, 3518, 7036, 8479, 8795, 16958, 17590, 33916, 35180, 42395, 84790, 107299, 169580, 214598, 244501, 429196, 489002, 536495, 978004, 1072990, 1222505, 2145980, 2445010, 4890020, 14914561, 29829122, 59658244, 74572805, 149145610, 298291220]

約数ペア:

[(1, 298291220), (2, 149145610), (4, 74572805), (5, 59658244), (10, 29829122), (20, 14914561), (61, 4890020), (122, 2445010), (139, 2145980), (244, 1222505), (278, 1072990), (305, 978004), (556, 536495), (610, 489002), (695, 429196), (1220, 244501), (1390, 214598), (1759, 169580), (2780, 107299), (3518, 84790), (7036, 42395), (8479, 35180), (8795, 33916), (16958, 17590)]