19776440

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{127}}^1\times {\mathrm{229}}^1$

素因数の和:384

約数の個数: 64

約数和(自身を含む): 47692800

約数和(自身を除く): 27916360

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 127, 136, 170, 229, 254, 340, 458, 508, 635, 680, 916, 1016, 1145, 1270, 1832, 2159, 2290, 2540, 3893, 4318, 4580, 5080, 7786, 8636, 9160, 10795, 15572, 17272, 19465, 21590, 29083, 31144, 38930, 43180, 58166, 77860, 86360, 116332, 145415, 155720, 232664, 290830, 494411, 581660, 988822, 1163320, 1977644, 2472055, 3955288, 4944110, 9888220, 19776440]

約数ペア:

[(1, 19776440), (2, 9888220), (4, 4944110), (5, 3955288), (8, 2472055), (10, 1977644), (17, 1163320), (20, 988822), (34, 581660), (40, 494411), (68, 290830), (85, 232664), (127, 155720), (136, 145415), (170, 116332), (229, 86360), (254, 77860), (340, 58166), (458, 43180), (508, 38930), (635, 31144), (680, 29083), (916, 21590), (1016, 19465), (1145, 17272), (1270, 15572), (1832, 10795), (2159, 9160), (2290, 8636), (2540, 7786), (3893, 5080), (4318, 4580)]