257784420

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{131}}^1\times {\mathrm{32797}}^1$

素因数の和:32940

約数の個数: 48

約数和(自身を含む): 727328448

約数和(自身を除く): 469544028

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 131, 262, 393, 524, 655, 786, 1310, 1572, 1965, 2620, 3930, 7860, 32797, 65594, 98391, 131188, 163985, 196782, 327970, 393564, 491955, 655940, 983910, 1967820, 4296407, 8592814, 12889221, 17185628, 21482035, 25778442, 42964070, 51556884, 64446105, 85928140, 128892210, 257784420]

約数ペア:

[(1, 257784420), (2, 128892210), (3, 85928140), (4, 64446105), (5, 51556884), (6, 42964070), (10, 25778442), (12, 21482035), (15, 17185628), (20, 12889221), (30, 8592814), (60, 4296407), (131, 1967820), (262, 983910), (393, 655940), (524, 491955), (655, 393564), (786, 327970), (1310, 196782), (1572, 163985), (1965, 131188), (2620, 98391), (3930, 65594), (7860, 32797)]