28747100

素因数分解:

$2^2\times 5^2\times {\mathrm{389}}^1\times {\mathrm{739}}^1$

素因数の和:1142

約数の個数: 36

約数和(自身を含む): 62626200

約数和(自身を除く): 33879100

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 389, 739, 778, 1478, 1556, 1945, 2956, 3695, 3890, 7390, 7780, 9725, 14780, 18475, 19450, 36950, 38900, 73900, 287471, 574942, 1149884, 1437355, 2874710, 5749420, 7186775, 14373550, 28747100]

約数ペア:

[(1, 28747100), (2, 14373550), (4, 7186775), (5, 5749420), (10, 2874710), (20, 1437355), (25, 1149884), (50, 574942), (100, 287471), (389, 73900), (739, 38900), (778, 36950), (1478, 19450), (1556, 18475), (1945, 14780), (2956, 9725), (3695, 7780), (3890, 7390)]