18273760

素因数分解:

$2^5\times 5^1\times {\mathrm{181}}^1\times {\mathrm{631}}^1$

素因数の和:827

約数の個数: 48

約数和(自身を含む): 43479072

約数和(自身を除く): 25205312

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 181, 362, 631, 724, 905, 1262, 1448, 1810, 2524, 2896, 3155, 3620, 5048, 5792, 6310, 7240, 10096, 12620, 14480, 20192, 25240, 28960, 50480, 100960, 114211, 228422, 456844, 571055, 913688, 1142110, 1827376, 2284220, 3654752, 4568440, 9136880, 18273760]

約数ペア:

[(1, 18273760), (2, 9136880), (4, 4568440), (5, 3654752), (8, 2284220), (10, 1827376), (16, 1142110), (20, 913688), (32, 571055), (40, 456844), (80, 228422), (160, 114211), (181, 100960), (362, 50480), (631, 28960), (724, 25240), (905, 20192), (1262, 14480), (1448, 12620), (1810, 10096), (2524, 7240), (2896, 6310), (3155, 5792), (3620, 5048)]