15438520

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{97}}^1\times {\mathrm{173}}^1$

素因数の和:304

約数の個数: 64

約数和(自身を含む): 36832320

約数和(自身を除く): 21393800

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 92, 97, 115, 173, 184, 194, 230, 346, 388, 460, 485, 692, 776, 865, 920, 970, 1384, 1730, 1940, 2231, 3460, 3880, 3979, 4462, 6920, 7958, 8924, 11155, 15916, 16781, 17848, 19895, 22310, 31832, 33562, 39790, 44620, 67124, 79580, 83905, 89240, 134248, 159160, 167810, 335620, 385963, 671240, 771926, 1543852, 1929815, 3087704, 3859630, 7719260, 15438520]

約数ペア:

[(1, 15438520), (2, 7719260), (4, 3859630), (5, 3087704), (8, 1929815), (10, 1543852), (20, 771926), (23, 671240), (40, 385963), (46, 335620), (92, 167810), (97, 159160), (115, 134248), (173, 89240), (184, 83905), (194, 79580), (230, 67124), (346, 44620), (388, 39790), (460, 33562), (485, 31832), (692, 22310), (776, 19895), (865, 17848), (920, 16781), (970, 15916), (1384, 11155), (1730, 8924), (1940, 7958), (2231, 6920), (3460, 4462), (3880, 3979)]