19428790

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{4969}}^1$

素因数の和:5016

約数の個数: 32

約数和(自身を含む): 38646720

約数和(自身を除く): 19217930

約数列:

[1, 2, 5, 10, 17, 23, 34, 46, 85, 115, 170, 230, 391, 782, 1955, 3910, 4969, 9938, 24845, 49690, 84473, 114287, 168946, 228574, 422365, 571435, 844730, 1142870, 1942879, 3885758, 9714395, 19428790]

約数ペア:

[(1, 19428790), (2, 9714395), (5, 3885758), (10, 1942879), (17, 1142870), (23, 844730), (34, 571435), (46, 422365), (85, 228574), (115, 168946), (170, 114287), (230, 84473), (391, 49690), (782, 24845), (1955, 9938), (3910, 4969)]