18861680

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{12409}}^1$

素因数の和:12441

約数の個数: 40

約数和(自身を含む): 46165200

約数和(自身を除く): 27303520

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 380, 760, 1520, 12409, 24818, 49636, 62045, 99272, 124090, 198544, 235771, 248180, 471542, 496360, 943084, 992720, 1178855, 1886168, 2357710, 3772336, 4715420, 9430840, 18861680]

約数ペア:

[(1, 18861680), (2, 9430840), (4, 4715420), (5, 3772336), (8, 2357710), (10, 1886168), (16, 1178855), (19, 992720), (20, 943084), (38, 496360), (40, 471542), (76, 248180), (80, 235771), (95, 198544), (152, 124090), (190, 99272), (304, 62045), (380, 49636), (760, 24818), (1520, 12409)]