19478480

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{4969}}^1$

素因数の和:4996

約数の個数: 60

約数和(自身を含む): 52691940

約数和(自身を除く): 33213460

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 49, 56, 70, 80, 98, 112, 140, 196, 245, 280, 392, 490, 560, 784, 980, 1960, 3920, 4969, 9938, 19876, 24845, 34783, 39752, 49690, 69566, 79504, 99380, 139132, 173915, 198760, 243481, 278264, 347830, 397520, 486962, 556528, 695660, 973924, 1217405, 1391320, 1947848, 2434810, 2782640, 3895696, 4869620, 9739240, 19478480]

約数ペア:

[(1, 19478480), (2, 9739240), (4, 4869620), (5, 3895696), (7, 2782640), (8, 2434810), (10, 1947848), (14, 1391320), (16, 1217405), (20, 973924), (28, 695660), (35, 556528), (40, 486962), (49, 397520), (56, 347830), (70, 278264), (80, 243481), (98, 198760), (112, 173915), (140, 139132), (196, 99380), (245, 79504), (280, 69566), (392, 49690), (490, 39752), (560, 34783), (784, 24845), (980, 19876), (1960, 9938), (3920, 4969)]