20109660515

素因数分解:

$5^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{197}}^1\times {\mathrm{21929}}^1$

素因数の和:22164

約数の個数: 48

約数和(自身を含む): 29700237600

約数和(自身を除く): 9590577085

約数列:

[1, 5, 7, 19, 35, 49, 95, 133, 197, 245, 665, 931, 985, 1379, 3743, 4655, 6895, 9653, 18715, 21929, 26201, 48265, 109645, 131005, 153503, 183407, 416651, 767515, 917035, 1074521, 2083255, 2916557, 4320013, 5372605, 14582785, 20415899, 21600065, 30240091, 82080247, 102079495, 151200455, 211680637, 410401235, 574561729, 1058403185, 2872808645, 4021932103, 20109660515]

約数ペア:

[(1, 20109660515), (5, 4021932103), (7, 2872808645), (19, 1058403185), (35, 574561729), (49, 410401235), (95, 211680637), (133, 151200455), (197, 102079495), (245, 82080247), (665, 30240091), (931, 21600065), (985, 20415899), (1379, 14582785), (3743, 5372605), (4655, 4320013), (6895, 2916557), (9653, 2083255), (18715, 1074521), (21929, 917035), (26201, 767515), (48265, 416651), (109645, 183407), (131005, 153503)]