30474220

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{109}}^1\times {\mathrm{1997}}^1$

素因数の和:2122

約数の個数: 48

約数和(自身を含む): 73846080

約数和(自身を除く): 43371860

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 109, 140, 218, 436, 545, 763, 1090, 1526, 1997, 2180, 3052, 3815, 3994, 7630, 7988, 9985, 13979, 15260, 19970, 27958, 39940, 55916, 69895, 139790, 217673, 279580, 435346, 870692, 1088365, 1523711, 2176730, 3047422, 4353460, 6094844, 7618555, 15237110, 30474220]

約数ペア:

[(1, 30474220), (2, 15237110), (4, 7618555), (5, 6094844), (7, 4353460), (10, 3047422), (14, 2176730), (20, 1523711), (28, 1088365), (35, 870692), (70, 435346), (109, 279580), (140, 217673), (218, 139790), (436, 69895), (545, 55916), (763, 39940), (1090, 27958), (1526, 19970), (1997, 15260), (2180, 13979), (3052, 9985), (3815, 7988), (3994, 7630)]