19364420

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{131}}^1\times {\mathrm{389}}^1$

素因数の和:548

約数の個数: 48

約数和(自身を含む): 43243200

約数和(自身を除く): 23878780

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 131, 190, 262, 380, 389, 524, 655, 778, 1310, 1556, 1945, 2489, 2620, 3890, 4978, 7391, 7780, 9956, 12445, 14782, 24890, 29564, 36955, 49780, 50959, 73910, 101918, 147820, 203836, 254795, 509590, 968221, 1019180, 1936442, 3872884, 4841105, 9682210, 19364420]

約数ペア:

[(1, 19364420), (2, 9682210), (4, 4841105), (5, 3872884), (10, 1936442), (19, 1019180), (20, 968221), (38, 509590), (76, 254795), (95, 203836), (131, 147820), (190, 101918), (262, 73910), (380, 50959), (389, 49780), (524, 36955), (655, 29564), (778, 24890), (1310, 14782), (1556, 12445), (1945, 9956), (2489, 7780), (2620, 7391), (3890, 4978)]