18090040

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{719}}^1$

素因数の和:784

約数の個数: 64

約数和(自身を含む): 44323200

約数和(自身を除く): 26233160

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 37, 40, 68, 74, 85, 136, 148, 170, 185, 296, 340, 370, 629, 680, 719, 740, 1258, 1438, 1480, 2516, 2876, 3145, 3595, 5032, 5752, 6290, 7190, 12223, 12580, 14380, 24446, 25160, 26603, 28760, 48892, 53206, 61115, 97784, 106412, 122230, 133015, 212824, 244460, 266030, 452251, 488920, 532060, 904502, 1064120, 1809004, 2261255, 3618008, 4522510, 9045020, 18090040]

約数ペア:

[(1, 18090040), (2, 9045020), (4, 4522510), (5, 3618008), (8, 2261255), (10, 1809004), (17, 1064120), (20, 904502), (34, 532060), (37, 488920), (40, 452251), (68, 266030), (74, 244460), (85, 212824), (136, 133015), (148, 122230), (170, 106412), (185, 97784), (296, 61115), (340, 53206), (370, 48892), (629, 28760), (680, 26603), (719, 25160), (740, 24446), (1258, 14380), (1438, 12580), (1480, 12223), (2516, 7190), (2876, 6290), (3145, 5752), (3595, 5032)]