18961701185

素因数分解:

$5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{479}}^1\times {\mathrm{907}}^1$

素因数の和:1470

約数の個数: 64

約数和(自身を含む): 27614822400

約数和(自身を除く): 8653121215

約数列:

[1, 5, 7, 29, 35, 43, 145, 203, 215, 301, 479, 907, 1015, 1247, 1505, 2395, 3353, 4535, 6235, 6349, 8729, 13891, 16765, 20597, 26303, 31745, 39001, 43645, 69455, 97237, 102985, 131515, 144179, 184121, 195005, 273007, 434453, 486185, 597313, 720895, 920605, 1131029, 1365035, 2172265, 2986565, 3041171, 4181191, 5655145, 7917203, 12599137, 15205855, 18681479, 20905955, 39586015, 62995685, 88193959, 93407395, 130770353, 440969795, 541762891, 653851765, 2708814455, 3792340237, 18961701185]

約数ペア:

[(1, 18961701185), (5, 3792340237), (7, 2708814455), (29, 653851765), (35, 541762891), (43, 440969795), (145, 130770353), (203, 93407395), (215, 88193959), (301, 62995685), (479, 39586015), (907, 20905955), (1015, 18681479), (1247, 15205855), (1505, 12599137), (2395, 7917203), (3353, 5655145), (4535, 4181191), (6235, 3041171), (6349, 2986565), (8729, 2172265), (13891, 1365035), (16765, 1131029), (20597, 920605), (26303, 720895), (31745, 597313), (39001, 486185), (43645, 434453), (69455, 273007), (97237, 195005), (102985, 184121), (131515, 144179)]