81383850

素因数分解:

$2^1\times 3^2\times 5^2\times {\mathrm{223}}^1\times {\mathrm{811}}^1$

素因数の和:1052

約数の個数: 72

約数和(自身を含む): 219902592

約数和(自身を除く): 138518742

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 25, 30, 45, 50, 75, 90, 150, 223, 225, 446, 450, 669, 811, 1115, 1338, 1622, 2007, 2230, 2433, 3345, 4014, 4055, 4866, 5575, 6690, 7299, 8110, 10035, 11150, 12165, 14598, 16725, 20070, 20275, 24330, 33450, 36495, 40550, 50175, 60825, 72990, 100350, 121650, 180853, 182475, 361706, 364950, 542559, 904265, 1085118, 1627677, 1808530, 2712795, 3255354, 4521325, 5425590, 8138385, 9042650, 13563975, 16276770, 27127950, 40691925, 81383850]

約数ペア:

[(1, 81383850), (2, 40691925), (3, 27127950), (5, 16276770), (6, 13563975), (9, 9042650), (10, 8138385), (15, 5425590), (18, 4521325), (25, 3255354), (30, 2712795), (45, 1808530), (50, 1627677), (75, 1085118), (90, 904265), (150, 542559), (223, 364950), (225, 361706), (446, 182475), (450, 180853), (669, 121650), (811, 100350), (1115, 72990), (1338, 60825), (1622, 50175), (2007, 40550), (2230, 36495), (2433, 33450), (3345, 24330), (4014, 20275), (4055, 20070), (4866, 16725), (5575, 14598), (6690, 12165), (7299, 11150), (8110, 10035)]