18880697955

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{379}}^1\times {\mathrm{24971}}^1$

素因数の和:25384

約数の個数: 64

約数和(自身を含む): 36439142400

約数和(自身を除く): 17558444445

約数列:

[1, 3, 5, 7, 15, 19, 21, 35, 57, 95, 105, 133, 285, 379, 399, 665, 1137, 1895, 1995, 2653, 5685, 7201, 7959, 13265, 21603, 24971, 36005, 39795, 50407, 74913, 108015, 124855, 151221, 174797, 252035, 374565, 474449, 524391, 756105, 873985, 1423347, 2372245, 2621955, 3321143, 7116735, 9464009, 9963429, 16605715, 28392027, 47320045, 49817145, 66248063, 141960135, 179816171, 198744189, 331240315, 539448513, 899080855, 993720945, 1258713197, 2697242565, 3776139591, 6293565985, 18880697955]

約数ペア:

[(1, 18880697955), (3, 6293565985), (5, 3776139591), (7, 2697242565), (15, 1258713197), (19, 993720945), (21, 899080855), (35, 539448513), (57, 331240315), (95, 198744189), (105, 179816171), (133, 141960135), (285, 66248063), (379, 49817145), (399, 47320045), (665, 28392027), (1137, 16605715), (1895, 9963429), (1995, 9464009), (2653, 7116735), (5685, 3321143), (7201, 2621955), (7959, 2372245), (13265, 1423347), (21603, 873985), (24971, 756105), (36005, 524391), (39795, 474449), (50407, 374565), (74913, 252035), (108015, 174797), (124855, 151221)]