15618940

素因数分解:

$2^2\times 5^1\times {\mathrm{83}}^1\times {\mathrm{97}}^2$

素因数の和:286

約数の個数: 36

約数和(自身を含む): 33540696

約数和(自身を除く): 17921756

約数列:

[1, 2, 4, 5, 10, 20, 83, 97, 166, 194, 332, 388, 415, 485, 830, 970, 1660, 1940, 8051, 9409, 16102, 18818, 32204, 37636, 40255, 47045, 80510, 94090, 161020, 188180, 780947, 1561894, 3123788, 3904735, 7809470, 15618940]

約数ペア:

[(1, 15618940), (2, 7809470), (4, 3904735), (5, 3123788), (10, 1561894), (20, 780947), (83, 188180), (97, 161020), (166, 94090), (194, 80510), (332, 47045), (388, 40255), (415, 37636), (485, 32204), (830, 18818), (970, 16102), (1660, 9409), (1940, 8051)]