19415720

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{433}}^1$

素因数の和:522

約数の個数: 64

約数和(自身を含む): 46872000

約数和(自身を除く): 27456280

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 59, 76, 95, 118, 152, 190, 236, 295, 380, 433, 472, 590, 760, 866, 1121, 1180, 1732, 2165, 2242, 2360, 3464, 4330, 4484, 5605, 8227, 8660, 8968, 11210, 16454, 17320, 22420, 25547, 32908, 41135, 44840, 51094, 65816, 82270, 102188, 127735, 164540, 204376, 255470, 329080, 485393, 510940, 970786, 1021880, 1941572, 2426965, 3883144, 4853930, 9707860, 19415720]

約数ペア:

[(1, 19415720), (2, 9707860), (4, 4853930), (5, 3883144), (8, 2426965), (10, 1941572), (19, 1021880), (20, 970786), (38, 510940), (40, 485393), (59, 329080), (76, 255470), (95, 204376), (118, 164540), (152, 127735), (190, 102188), (236, 82270), (295, 65816), (380, 51094), (433, 44840), (472, 41135), (590, 32908), (760, 25547), (866, 22420), (1121, 17320), (1180, 16454), (1732, 11210), (2165, 8968), (2242, 8660), (2360, 8227), (3464, 5605), (4330, 4484)]