19682820

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{2543}}^1$

素因数の和:2601

約数の個数: 72

約数和(自身を含む): 61117056

約数和(自身を除く): 41434236

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 43, 45, 60, 86, 90, 129, 172, 180, 215, 258, 387, 430, 516, 645, 774, 860, 1290, 1548, 1935, 2543, 2580, 3870, 5086, 7629, 7740, 10172, 12715, 15258, 22887, 25430, 30516, 38145, 45774, 50860, 76290, 91548, 109349, 114435, 152580, 218698, 228870, 328047, 437396, 457740, 546745, 656094, 984141, 1093490, 1312188, 1640235, 1968282, 2186980, 3280470, 3936564, 4920705, 6560940, 9841410, 19682820]

約数ペア:

[(1, 19682820), (2, 9841410), (3, 6560940), (4, 4920705), (5, 3936564), (6, 3280470), (9, 2186980), (10, 1968282), (12, 1640235), (15, 1312188), (18, 1093490), (20, 984141), (30, 656094), (36, 546745), (43, 457740), (45, 437396), (60, 328047), (86, 228870), (90, 218698), (129, 152580), (172, 114435), (180, 109349), (215, 91548), (258, 76290), (387, 50860), (430, 45774), (516, 38145), (645, 30516), (774, 25430), (860, 22887), (1290, 15258), (1548, 12715), (1935, 10172), (2543, 7740), (2580, 7629), (3870, 5086)]