61872265

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{421}}^1$

素因数の和:482

約数の個数: 64

約数和(自身を含む): 102090240

約数和(自身を除く): 40217975

約数列:

[1, 5, 7, 13, 17, 19, 35, 65, 85, 91, 95, 119, 133, 221, 247, 323, 421, 455, 595, 665, 1105, 1235, 1547, 1615, 1729, 2105, 2261, 2947, 4199, 5473, 7157, 7735, 7999, 8645, 11305, 14735, 20995, 27365, 29393, 35785, 38311, 39995, 50099, 55993, 93041, 103987, 135983, 146965, 191555, 250495, 279965, 465205, 519935, 651287, 679915, 727909, 951881, 1767779, 3256435, 3639545, 4759405, 8838895, 12374453, 61872265]

約数ペア:

[(1, 61872265), (5, 12374453), (7, 8838895), (13, 4759405), (17, 3639545), (19, 3256435), (35, 1767779), (65, 951881), (85, 727909), (91, 679915), (95, 651287), (119, 519935), (133, 465205), (221, 279965), (247, 250495), (323, 191555), (421, 146965), (455, 135983), (595, 103987), (665, 93041), (1105, 55993), (1235, 50099), (1547, 39995), (1615, 38311), (1729, 35785), (2105, 29393), (2261, 27365), (2947, 20995), (4199, 14735), (5473, 11305), (7157, 8645), (7735, 7999)]