81219700

素因数分解:

$2^2\times 5^2\times {\mathrm{379}}^1\times {\mathrm{2143}}^1$

素因数の和:2536

約数の個数: 36

約数和(自身を含む): 176794240

約数和(自身を除く): 95574540

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 379, 758, 1516, 1895, 2143, 3790, 4286, 7580, 8572, 9475, 10715, 18950, 21430, 37900, 42860, 53575, 107150, 214300, 812197, 1624394, 3248788, 4060985, 8121970, 16243940, 20304925, 40609850, 81219700]

約数ペア:

[(1, 81219700), (2, 40609850), (4, 20304925), (5, 16243940), (10, 8121970), (20, 4060985), (25, 3248788), (50, 1624394), (100, 812197), (379, 214300), (758, 107150), (1516, 53575), (1895, 42860), (2143, 37900), (3790, 21430), (4286, 18950), (7580, 10715), (8572, 9475)]