180259240

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{91969}}^1$

素因数の和:91994

約数の個数: 48

約数和(自身を含む): 471806100

約数和(自身を除く): 291546860

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 196, 245, 280, 392, 490, 980, 1960, 91969, 183938, 367876, 459845, 643783, 735752, 919690, 1287566, 1839380, 2575132, 3218915, 3678760, 4506481, 5150264, 6437830, 9012962, 12875660, 18025924, 22532405, 25751320, 36051848, 45064810, 90129620, 180259240]

約数ペア:

[(1, 180259240), (2, 90129620), (4, 45064810), (5, 36051848), (7, 25751320), (8, 22532405), (10, 18025924), (14, 12875660), (20, 9012962), (28, 6437830), (35, 5150264), (40, 4506481), (49, 3678760), (56, 3218915), (70, 2575132), (98, 1839380), (140, 1287566), (196, 919690), (245, 735752), (280, 643783), (392, 459845), (490, 367876), (980, 183938), (1960, 91969)]