19185220

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{179}}^1\times {\mathrm{233}}^1$

素因数の和:444

約数の個数: 48

約数和(自身を含む): 42456960

約数和(自身を除く): 23271740

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 92, 115, 179, 230, 233, 358, 460, 466, 716, 895, 932, 1165, 1790, 2330, 3580, 4117, 4660, 5359, 8234, 10718, 16468, 20585, 21436, 26795, 41170, 41707, 53590, 82340, 83414, 107180, 166828, 208535, 417070, 834140, 959261, 1918522, 3837044, 4796305, 9592610, 19185220]

約数ペア:

[(1, 19185220), (2, 9592610), (4, 4796305), (5, 3837044), (10, 1918522), (20, 959261), (23, 834140), (46, 417070), (92, 208535), (115, 166828), (179, 107180), (230, 83414), (233, 82340), (358, 53590), (460, 41707), (466, 41170), (716, 26795), (895, 21436), (932, 20585), (1165, 16468), (1790, 10718), (2330, 8234), (3580, 5359), (4117, 4660)]